new helper: iov_iter_get_pages_alloc()

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same as iov_iter_get_pages(), except that pages array is allocated
(kmalloc if possible, vmalloc if that fails) and left for caller to
free.  Lustre and NFS ->direct_IO() switched to it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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This commit is contained in:

Al Viro 2014-03-21 04:58:33 -04:00

parent f67da30c1d

commit 91f79c43d1

4 changed files with 167 additions and 257 deletions

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96

drivers/staging/lustre/lustre/llite/rw26.c

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288

fs/nfs/direct.c

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2

include/linux/uio.h

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40

mm/iov_iter.c

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