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linux/fs/ceph/ioctl.c

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ceph: fix pr_fmt() redefinition The vfs merge caused a latent bug to show up: In file included from fs/ceph/super.h:4:0, from fs/ceph/ioctl.c:3: include/linux/ceph/ceph_debug.h:4:0: warning: "pr_fmt" redefined [enabled by default] #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt ^ In file included from include/linux/kernel.h:13:0, from include/linux/uio.h:12, from include/linux/socket.h:7, from include/uapi/linux/in.h:22, from include/linux/in.h:23, from fs/ceph/ioctl.c:1: include/linux/printk.h:214:0: note: this is the location of the previous definition #define pr_fmt(fmt) fmt ^ where the reason is that <linux/ceph_debug.h> is included much too late for the "pr_fmt()" define. The include of <linux/ceph_debug.h> needs to be the first include in the file, but fs/ceph/ioctl.c had for some reason missed that, and it wasn't noticeable until some unrelated header file changes brought in an indirect earlier include of <linux/kernel.h>. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-12 15:39:53 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: factor out libceph from Ceph file system This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-06 15:14:15 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
new helper: file_inode(file) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-23 17:07:38 -05:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: request xattrs if xattr_version is zero Following sequence of events can happen. - Client releases an inode, queues cap release message. - A 'lookup' reply brings the same inode back, but the reply doesn't contain xattrs because MDS didn't receive the cap release message and thought client already has up-to-data xattrs. The fix is force sending a getattr request to MDS if xattrs_version is 0. The getattr mask is set to CEPH_STAT_CAP_XATTR, so MDS knows client does not have xattr. Signed-off-by: Yan, Zheng <zyan@redhat.com>
2014-09-16 21:46:17 +08:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: drop support for preferred_osd pgs This was an ill-conceived feature that has been removed from Ceph. Do this gracefully: - reject attempts to specify a preferred_osd via the ioctl - stop exposing this information via virtual xattrs - always fill in -1 for requests, in case we talk to an older server - don't calculate preferred_osd placements/pgids Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-05-07 15:33:36 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: refactor SETLAYOUT and SETDIRLAYOUT ioctl checks into common helper Both of these methods perform similar checks; move that code to a helper so that we can ensure the checks are consistent. Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-05-07 15:34:35 -07:00
ceph: fix divide-by-zero in __validate_layout() The 'stripe_unit' field is 64 bits, casting it to 32 bits can result zero. Signed-off-by: Yan, Zheng <zyan@redhat.com>
2014-10-14 15:38:01 +08:00
ceph: avoid divide by zero in __validate_layout() If "l->stripe_unit" is zero the the mod on the next line will cause a divide by zero bug. This comes from the copy_from_user() in ceph_ioctl_set_layout_policy(). Passing 0 is valid, though (it means "do not change") so avoid the % check in that case. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-08-21 12:11:51 -07:00
ceph: refactor SETLAYOUT and SETDIRLAYOUT ioctl checks into common helper Both of these methods perform similar checks; move that code to a helper so that we can ensure the checks are consistent. Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-05-07 15:34:35 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
new helper: file_inode(file) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-23 17:07:38 -05:00
ceph: factor out libceph from Ceph file system This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-06 15:14:15 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
new helper: file_inode(file) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-23 17:07:38 -05:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: refactor SETLAYOUT and SETDIRLAYOUT ioctl checks into common helper Both of these methods perform similar checks; move that code to a helper so that we can ensure the checks are consistent. Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-05-07 15:34:35 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: request xattrs if xattr_version is zero Following sequence of events can happen. - Client releases an inode, queues cap release message. - A 'lookup' reply brings the same inode back, but the reply doesn't contain xattrs because MDS didn't receive the cap release message and thought client already has up-to-data xattrs. The fix is force sending a getattr request to MDS if xattrs_version is 0. The getattr mask is set to CEPH_STAT_CAP_XATTR, so MDS knows client does not have xattr. Signed-off-by: Yan, Zheng <zyan@redhat.com>
2014-09-16 21:46:17 +08:00
ceph: fully initialize new layout When we are setting a new layout, fully initialize the structure: - zero it out - always set preferred_osd to -1 Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-05-14 12:34:38 -07:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: fully initialize new layout When we are setting a new layout, fully initialize the structure: - zero it out - always set preferred_osd to -1 Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-05-14 12:34:38 -07:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: fully initialize new layout When we are setting a new layout, fully initialize the structure: - zero it out - always set preferred_osd to -1 Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-05-14 12:34:38 -07:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: fully initialize new layout When we are setting a new layout, fully initialize the structure: - zero it out - always set preferred_osd to -1 Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-05-14 12:34:38 -07:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: fully initialize new layout When we are setting a new layout, fully initialize the structure: - zero it out - always set preferred_osd to -1 Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-05-14 12:34:38 -07:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: fully initialize new layout When we are setting a new layout, fully initialize the structure: - zero it out - always set preferred_osd to -1 Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-05-14 12:34:38 -07:00
ceph: let the set_layout ioctl set single traits Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-08-25 12:43:06 -07:00
ceph: refactor SETLAYOUT and SETDIRLAYOUT ioctl checks into common helper Both of these methods perform similar checks; move that code to a helper so that we can ensure the checks are consistent. Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-05-07 15:34:35 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: use ihold when we already have an inode ref We should use ihold whenever we already have a stable inode ref, even when we aren't holding i_lock. This avoids adding new and unnecessary locking dependencies. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-27 09:24:26 -07:00
ceph: reserve caps for file layout/lock MDS requests Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-27 09:17:45 +08:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: do not chain inode updates to parent fsync The fsync(dirfd) only covers namespace operations, not inode updates. We do not need to cover setattr variants or O_TRUNC. Reported-by: Al Viro <viro@xeniv.linux.org.uk> Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
2013-02-05 13:52:29 -08:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. Signed-off-by: Sage Weil <sage@newdream.net>
2010-09-24 14:56:40 -07:00
new helper: file_inode(file) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-23 17:07:38 -05:00
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. Signed-off-by: Sage Weil <sage@newdream.net>
2010-09-24 14:56:40 -07:00
ceph: refactor SETLAYOUT and SETDIRLAYOUT ioctl checks into common helper Both of these methods perform similar checks; move that code to a helper so that we can ensure the checks are consistent. Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-05-07 15:34:35 -07:00
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. Signed-off-by: Sage Weil <sage@newdream.net>
2010-09-24 14:56:40 -07:00
ceph: refactor SETLAYOUT and SETDIRLAYOUT ioctl checks into common helper Both of these methods perform similar checks; move that code to a helper so that we can ensure the checks are consistent. Reviewed-by: Alex Elder <elder@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2012-05-07 15:34:35 -07:00
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. Signed-off-by: Sage Weil <sage@newdream.net>
2010-09-24 14:56:40 -07:00
ceph: use ihold when we already have an inode ref We should use ihold whenever we already have a stable inode ref, even when we aren't holding i_lock. This avoids adding new and unnecessary locking dependencies. Signed-off-by: Sage Weil <sage@newdream.net>
2011-05-27 09:24:26 -07:00
ceph: reserve caps for file layout/lock MDS requests Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-04-27 09:17:45 +08:00
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. Signed-off-by: Sage Weil <sage@newdream.net>
2010-09-24 14:56:40 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
new helper: file_inode(file) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-23 17:07:38 -05:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: factor out libceph from Ceph file system This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-06 15:14:15 -07:00
libceph: replace ceph_calc_ceph_pg() with ceph_oloc_oid_to_pg() Switch ceph_calc_ceph_pg() to new oloc and oid abstractions and rename it to ceph_oloc_oid_to_pg() to make its purpose more clear. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-01-27 17:40:19 +02:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: fix endian conversions for ceph_pg The endian conversions don't quite work with the old union ceph_pg. Just make it a regular struct, and make each field __le. This is simpler and it has the added bonus of actually working. Signed-off-by: Sage Weil <sage@newdream.net>
2009-11-04 11:39:12 -08:00
ceph: return EIO on invalid layout on GET_DATALOC ioctl If the user calls GET_DATALOC on a file with an invalid (e.g., zeroed) layout, return EIO to userland. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-09-24 21:04:57 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
libceph: pass length to ceph_calc_file_object_mapping() ceph_calc_file_object_mapping() takes (among other things) a "file" offset and length, and based on the layout, determines the object number ("bno") backing the affected portion of the file's data and the offset into that object where the desired range begins. It also computes the size that should be used for the request--either the amount requested or something less if that would exceed the end of the object. This patch changes the input length parameter in this function so it is used only for input. That is, the argument will be passed by value rather than by address, so the value provided won't get updated by the function. The value would only get updated if the length would surpass the current object, and in that case the value it got updated to would be exactly that returned in *oxlen. Only one of the two callers is affected by this change. Update ceph_calc_raw_layout() so it records any updated value. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
2012-11-14 09:38:19 -06:00
ceph: return EIO on invalid layout on GET_DATALOC ioctl If the user calls GET_DATALOC on a file with an invalid (e.g., zeroed) layout, return EIO to userland. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-09-24 21:04:57 -07:00
ceph: Don't forget the 'up_read(&osdc->map_sem)' if met error. CC: stable@vger.kernel.org Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Reviewed-by: Sage Weil <sage@inktank.com>
2013-07-16 19:36:21 +08:00
ceph: return EIO on invalid layout on GET_DATALOC ioctl If the user calls GET_DATALOC on a file with an invalid (e.g., zeroed) layout, return EIO to userland. Signed-off-by: Sage Weil <sage@inktank.com> Reviewed-by: Alex Elder <elder@inktank.com>
2012-09-24 21:04:57 -07:00
ceph: Don't forget the 'up_read(&osdc->map_sem)' if met error. CC: stable@vger.kernel.org Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Reviewed-by: Sage Weil <sage@inktank.com>
2013-07-16 19:36:21 +08:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
libceph: rename ceph_calc_object_layout() The purpose of ceph_calc_object_layout() is to fill in the pool number and seed for a ceph_pg structure provided, based on a given osd map and target object id. Currently that function takes a file layout parameter, but the only thing used out of that is its pool number. Change the function so it takes a pool number rather than the full file layout structure. Only update the ceph_pg if the pool is found in the osd map. Get rid of few useless lines of code from the function while there. Since the function now very clearly just fills in the ceph_pg structure it's provided, rename it ceph_calc_ceph_pg(). Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
2013-03-01 18:00:15 -06:00
libceph: replace ceph_calc_ceph_pg() with ceph_oloc_oid_to_pg() Switch ceph_calc_ceph_pg() to new oloc and oid abstractions and rename it to ceph_oloc_oid_to_pg() to make its purpose more clear. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>
2014-01-27 17:40:19 +02:00
ceph: Add check returned value on func ceph_calc_ceph_pg. Func ceph_calc_ceph_pg maybe failed.So add check for returned value. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Reviewed-by: Sage Weil <sage@inktank.com> Signed-off-by: Sage Weil <sage@inktank.com>
2013-08-02 18:14:48 +08:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: add LAZYIO ioctl to mark a file description for lazy consistency Allow an application to mark a file descriptor for lazy file consistency semantics, allowing buffered reads and writes when multiple clients are accessing the same file. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-16 09:53:43 -07:00
new helper: file_inode(file) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-23 17:07:38 -05:00
ceph: add LAZYIO ioctl to mark a file description for lazy consistency Allow an application to mark a file descriptor for lazy file consistency semantics, allowing buffered reads and writes when multiple clients are accessing the same file. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-16 09:53:43 -07:00
ceph: use i_ceph_lock instead of i_lock We have been using i_lock to protect all kinds of data structures in the ceph_inode_info struct, including lists of inodes that we need to iterate over while avoiding races with inode destruction. That requires grabbing a reference to the inode with the list lock protected, but igrab() now takes i_lock to check the inode flags. Changing the list lock ordering would be a painful process. However, using a ceph-specific i_ceph_lock in the ceph inode instead of i_lock is a simple mechanical change and avoids the ordering constraints imposed by igrab(). Reported-by: Amon Ott <a.ott@m-privacy.de> Signed-off-by: Sage Weil <sage@newdream.net>
2011-11-30 09:47:09 -08:00
ceph: add LAZYIO ioctl to mark a file description for lazy consistency Allow an application to mark a file descriptor for lazy file consistency semantics, allowing buffered reads and writes when multiple clients are accessing the same file. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-16 09:53:43 -07:00
ceph: use i_ceph_lock instead of i_lock We have been using i_lock to protect all kinds of data structures in the ceph_inode_info struct, including lists of inodes that we need to iterate over while avoiding races with inode destruction. That requires grabbing a reference to the inode with the list lock protected, but igrab() now takes i_lock to check the inode flags. Changing the list lock ordering would be a painful process. However, using a ceph-specific i_ceph_lock in the ceph inode instead of i_lock is a simple mechanical change and avoids the ordering constraints imposed by igrab(). Reported-by: Amon Ott <a.ott@m-privacy.de> Signed-off-by: Sage Weil <sage@newdream.net>
2011-11-30 09:47:09 -08:00
ceph: add LAZYIO ioctl to mark a file description for lazy consistency Allow an application to mark a file descriptor for lazy file consistency semantics, allowing buffered reads and writes when multiple clients are accessing the same file. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-16 09:53:43 -07:00
ceph: add F_SYNC file flag to force sync (non-O_DIRECT) io This allows us to force IO through the sync path which you normally only get when multiple clients are reading/writing to the same file or by mounting with -o sync. Among other things, this lets test programs verify correctness with a single mount. Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:26:07 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. Signed-off-by: Sage Weil <sage@newdream.net>
2010-09-24 14:56:40 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: add LAZYIO ioctl to mark a file description for lazy consistency Allow an application to mark a file descriptor for lazy file consistency semantics, allowing buffered reads and writes when multiple clients are accessing the same file. Signed-off-by: Sage Weil <sage@newdream.net>
2010-04-16 09:53:43 -07:00
ceph: add F_SYNC file flag to force sync (non-O_DIRECT) io This allows us to force IO through the sync path which you normally only get when multiple clients are reading/writing to the same file or by mounting with -o sync. Among other things, this lets test programs verify correctness with a single mount. Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
2011-07-26 11:26:07 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00
ceph: add CEPH_MDS_OP_SETDIRLAYOUT and associated ioctl. Signed-off-by: Sage Weil <sage@newdream.net>
2010-09-24 14:56:40 -07:00
ceph: ioctls A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06 11:31:14 -07:00