diff options
author | Hugh Dickins <hugh@veritas.com> | 2008-02-05 06:28:53 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-05 17:44:15 (GMT) |
commit | 2e0e26c76a35de8f8bec6b2b917518cfeb52888a (patch) | |
tree | 1357781bfe035c2401c65b2d0203385a47516bf5 /net/rfkill | |
parent | cb5f7b9a47963d9238398cd0c2676473e3c6896d (diff) | |
download | linux-fsl-qoriq-2e0e26c76a35de8f8bec6b2b917518cfeb52888a.tar.xz |
tmpfs: open a window in shmem_unuse_inode
There are a couple of reasons (patches follow) why it would be good to open a
window for sleep in shmem_unuse_inode, between its search for a matching swap
entry, and its handling of the entry found.
shmem_unuse_inode must then use igrab to hold the inode against deletion in
that window, and its corresponding iput might result in deletion: so it had
better unlock_page before the iput, and might as well release the page too.
Nor is there any need to hold on to shmem_swaplist_mutex once we know we'll
leave the loop. So this unwinding moves from try_to_unuse and shmem_unuse
into shmem_unuse_inode, in the case when it finds a match.
Let try_to_unuse break on error in the shmem_unuse case, as it does in the
unuse_mm case: though at this point in the series, no error to break on.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/rfkill')
0 files changed, 0 insertions, 0 deletions