NFS: Use wait_on_atomic_t() for unlock after readahead

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The use of wait_on_atomic_t() for waiting on I/O to complete before
unlocking allows us to git rid of the NFS_IO_INPROGRESS flag, and thus the
nfs_iocounter's flags member, and finally the nfs_iocounter altogether.
The count of I/O is moved to the lock context, and the counter
increment/decrement functions become simple enough to open-code.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
[Trond: Fix up conflict with existing function nfs_wait_atomic_killable()]
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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Benjamin Coddington 2016-01-06 10:40:18 -05:00 • committed by Trond Myklebust

parent 942e3d72a6

commit 210c7c1750

6 changed files with 23 additions and 70 deletions

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2

fs/nfs/file.c

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18

fs/nfs/inode.c

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9

fs/nfs/internal.h

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48

fs/nfs/pagelist.c

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8

fs/nfs/write.c

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8

include/linux/nfs_fs.h

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