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| author | Gao Xiang <hsiangkao@redhat.com> | 2020-10-14 01:52:04 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-14 03:38:29 +0200 |
| commit | 3264631548b1f2bf89b71793d06bfd0f748f649d (patch) | |
| tree | 7fb64469bd73774bc342774aac6c542c56acd602 /mm/swap_state.c | |
| parent | mm/gup: protect unpin_user_pages() against npages==-ERRNO (diff) | |
| download | linux-3264631548b1f2bf89b71793d06bfd0f748f649d.tar.xz linux-3264631548b1f2bf89b71793d06bfd0f748f649d.zip | |
swap: rename SWP_FS to SWAP_FS_OPS to avoid ambiguity
SWP_FS is used to make swap_{read,write}page() go through the filesystem,
and it's only used for swap files over NFS for now. Otherwise it will
directly submit IO to blockdev according to swapfile extents reported by
filesystems in advance.
As Matthew pointed out [1], SWP_FS naming is somewhat confusing, so let's
rename to SWP_FS_OPS.
[1] https://lore.kernel.org/r/20200820113448.GM17456@casper.infradead.org
Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200822113019.11319-1-hsiangkao@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/swap_state.c')
| -rw-r--r-- | mm/swap_state.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/swap_state.c b/mm/swap_state.c index f24f2cea4238..aa40e706604c 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -665,7 +665,7 @@ struct page *swap_cluster_readahead(swp_entry_t entry, gfp_t gfp_mask, goto skip; /* Test swap type to make sure the dereference is safe */ - if (likely(si->flags & (SWP_BLKDEV | SWP_FS))) { + if (likely(si->flags & (SWP_BLKDEV | SWP_FS_OPS))) { struct inode *inode = si->swap_file->f_mapping->host; if (inode_read_congested(inode)) goto skip; |