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linux/Documentation/core-api/xarray.rst

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xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: Improve documentation of search marks Move most of the mark-related documentation to its own section to make it easier to understand. Add clarification that you can't search for an unset mark, and you can't yet search for combinations of marks. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2019-11-08 23:45:56 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: Improve documentation of search marks Move most of the mark-related documentation to its own section to make it easier to understand. Add clarification that you can't search for an unset mark, and you can't yet search for combinations of marks. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2019-11-08 23:45:56 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: Fix Documentation Minor fixes. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:37:15 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Change xa_insert to return -EBUSY Userspace translates EEXIST to "File exists" which isn't a very good error message for the problem. "Device or resource busy" is a better indication of what went wrong. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2019-02-06 13:07:11 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: Add xa_for_each_range This function supports iterating over a range of an array. Also add documentation links for xa_for_each_start(). Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2020-01-12 15:54:10 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add range store functionality This version of xa_store_range() really only supports load and store. Our only user only needs basic load and store functionality, so there's no need to do the extra work to support marking and overlapping stores correctly yet. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-08-15 14:13:29 -04:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Honour reserved entries in xa_insert xa_insert() should treat reserved entries as occupied, not as available. Also, it should treat requests to insert a NULL pointer as a request to reserve the slot. Add xa_insert_bh() and xa_insert_irq() for completeness. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2019-01-02 13:57:03 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Honour reserved entries in xa_insert xa_insert() should treat reserved entries as occupied, not as available. Also, it should treat requests to insert a NULL pointer as a request to reserve the slot. Add xa_insert_bh() and xa_insert_irq() for completeness. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2019-01-02 13:57:03 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Regularise xa_reserve The xa_reserve() function was a little unusual in that it attempted to be callable for all kinds of locking scenarios. Make it look like the other APIs with __xa_reserve, xa_reserve_bh and xa_reserve_irq variants. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-10-30 09:45:55 -04:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Fix Documentation Minor fixes. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:37:15 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: Improve documentation of search marks Move most of the mark-related documentation to its own section to make it easier to understand. Add clarification that you can't search for an unset mark, and you can't yet search for combinations of marks. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2019-11-08 23:45:56 -05:00
XArray: Handle NULL pointers differently for allocation For allocating XArrays, it makes sense to distinguish beteen erasing an entry and storing NULL. Storing NULL keeps the index allocated with a NULL pointer associated with it while xa_erase() frees the index. Some existing IDR users rely on this ability. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:15:56 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Handle NULL pointers differently for allocation For allocating XArrays, it makes sense to distinguish beteen erasing an entry and storing NULL. Storing NULL keeps the index allocated with a NULL pointer associated with it while xa_erase() frees the index. Some existing IDR users rely on this ability. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:15:56 -05:00
xarray: Track free entries in an XArray Add the optional ability to track which entries in an XArray are free and provide xa_alloc() to replace most of the functionality of the IDR. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-07-04 10:50:12 -04:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Track free entries in an XArray Add the optional ability to track which entries in an XArray are free and provide xa_alloc() to replace most of the functionality of the IDR. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-07-04 10:50:12 -04:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Handle NULL pointers differently for allocation For allocating XArrays, it makes sense to distinguish beteen erasing an entry and storing NULL. Storing NULL keeps the index allocated with a NULL pointer associated with it while xa_erase() frees the index. Some existing IDR users rely on this ability. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:15:56 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Add support for 1s-based allocation A lot of places want to allocate IDs starting at 1 instead of 0. While the xa_alloc() API supports this, it's not very efficient if lots of IDs are allocated, due to having to walk down to the bottom of the tree to see if ID 1 is available, then all the way over to the next non-allocated ID. This method marks ID 0 as being occupied which wastes one slot in the XArray, but preserves xa_empty() as working. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-10-26 14:43:22 -04:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Handle NULL pointers differently for allocation For allocating XArrays, it makes sense to distinguish beteen erasing an entry and storing NULL. Storing NULL keeps the index allocated with a NULL pointer associated with it while xa_erase() frees the index. Some existing IDR users rely on this ability. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:15:56 -05:00
XArray: Add support for 1s-based allocation A lot of places want to allocate IDs starting at 1 instead of 0. While the xa_alloc() API supports this, it's not very efficient if lots of IDs are allocated, due to having to walk down to the bottom of the tree to see if ID 1 is available, then all the way over to the next non-allocated ID. This method marks ID 0 as being occupied which wastes one slot in the XArray, but preserves xa_empty() as working. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-10-26 14:43:22 -04:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Add cyclic allocation This differs slightly from the IDR equivalent in five ways. 1. It can allocate up to UINT_MAX instead of being limited to INT_MAX, like xa_alloc(). Also like xa_alloc(), it will write to the 'id' pointer before placing the entry in the XArray. 2. The 'next' cursor is allocated separately from the XArray instead of being part of the IDR. This saves memory for all the users which do not use the cyclic allocation API and suits some users better. 3. It returns -EBUSY instead of -ENOSPC. 4. It will attempt to wrap back to the minimum value on memory allocation failure as well as on an -EBUSY error, assuming that a user would rather allocate a small ID than suffer an ID allocation failure. 5. It reports whether it has wrapped, which is important to some users. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-06 14:13:35 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Add support for 1s-based allocation A lot of places want to allocate IDs starting at 1 instead of 0. While the xa_alloc() API supports this, it's not very efficient if lots of IDs are allocated, due to having to walk down to the bottom of the tree to see if ID 1 is available, then all the way over to the next non-allocated ID. This method marks ID 0 as being occupied which wastes one slot in the XArray, but preserves xa_empty() as working. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-10-26 14:43:22 -04:00
XArray: Handle NULL pointers differently for allocation For allocating XArrays, it makes sense to distinguish beteen erasing an entry and storing NULL. Storing NULL keeps the index allocated with a NULL pointer associated with it while xa_erase() frees the index. Some existing IDR users rely on this ability. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:15:56 -05:00
xarray: Track free entries in an XArray Add the optional ability to track which entries in an XArray are free and provide xa_alloc() to replace most of the functionality of the IDR. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-07-04 10:50:12 -04:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Track free entries in an XArray Add the optional ability to track which entries in an XArray are free and provide xa_alloc() to replace most of the functionality of the IDR. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-07-04 10:50:12 -04:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
XArray: Add xa_for_each_range This function supports iterating over a range of an array. Also add documentation links for xa_for_each_start(). Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2020-01-12 15:54:10 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: Document the locking requirement for the xa_state It wasn't obvious to all readers that it's unsafe to reuse an xa_state after dropping the xas_lock() or the rcu_read_lock(). Reported-by: Charan Teja Kalla <charante@codeaurora.org> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2021-12-13 23:03:54 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
xarray: Add xa_reserve and xa_release This function reserves a slot in the XArray for users which need to acquire multiple locks before storing their entry in the tree and so cannot use a plain xa_store(). Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-10-01 14:54:59 -04:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add xa_reserve and xa_release This function reserves a slot in the XArray for users which need to acquire multiple locks before storing their entry in the tree and so cannot use a plain xa_store(). Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-10-01 14:54:59 -04:00
XArray: Handle NULL pointers differently for allocation For allocating XArrays, it makes sense to distinguish beteen erasing an entry and storing NULL. Storing NULL keeps the index allocated with a NULL pointer associated with it while xa_erase() frees the index. Some existing IDR users rely on this ability. Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-11-05 16:15:56 -05:00
xarray: Add xa_reserve and xa_release This function reserves a slot in the XArray for users which need to acquire multiple locks before storing their entry in the tree and so cannot use a plain xa_store(). Signed-off-by: Matthew Wilcox <willy@infradead.org>
2018-10-01 14:54:59 -04:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: Improve documentation of search marks Move most of the mark-related documentation to its own section to make it easier to understand. Add clarification that you can't search for an unset mark, and you can't yet search for combinations of marks. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2019-11-08 23:45:56 -05:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
docs: remove :c:func: annotations from xarray.rst Now that the build system automatically marks up function references, we don't have to clutter the source files, so take it out. [Some paragraphs could now benefit from refilling, but that was left out to avoid obscuring the real changes.] Acked-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-04-25 13:48:13 -06:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00
XArray: add xas_split In order to use multi-index entries for huge pages in the page cache, we need to be able to split a multi-index entry (eg if a file is truncated in the middle of a huge page entry). This version does not support splitting more than one level of the tree at a time. This is an acceptable limitation for the page cache as we do not expect to support order-12 pages in the near future. [akpm@linux-foundation.org: export xas_split_alloc() to modules] [willy@infradead.org: fix xarray split] Link: https://lkml.kernel.org/r/20200910175450.GV6583@casper.infradead.org [willy@infradead.org: fix xarray] Link: https://lkml.kernel.org/r/20201001233943.GW20115@casper.infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Qian Cai <cai@lca.pw> Cc: Song Liu <songliubraving@fb.com> Link: https://lkml.kernel.org/r/20200903183029.14930-3-willy@infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-15 20:05:16 -07:00
xarray: Add documentation This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox <willy@infradead.org> Acked-by: Josef Bacik <jbacik@fb.com>
2017-11-23 22:57:20 -05:00