afs: use read_seqbegin() in afs_check_validity() and afs_getattr()

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David Howells says:

 (3) afs_check_validity().
 (4) afs_getattr().

     These are both pretty short, so your solution is probably good for them.
     That said, afs_vnode_commit_status() can spend a long time under the
     write lock - and pretty much every file RPC op returns a status update.

Change these functions to use read_seqbegin(). This simplifies the code
and doesn't change the current behaviour, the "seq" counter is always even
so read_seqbegin_or_lock() can never take the lock.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/20231130115617.GA21584@redhat.com/

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Oleg Nesterov 2023-11-30 12:56:17 +01:00 • committed by David Howells

parent 1702e0654c

commit df91b9dfde

1 changed files with 6 additions and 9 deletions

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fs/afs/inode.c

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