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| author |   Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-04-29 22:55:26 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-30 11:20:36 -0700 |
| commit | d31fa86a27b3ecdc32bf19326c4d3bba854542e2 (patch) | |
| tree | 521aebe00c5a1a8732dba717de434e8e0a3dd147 /mm/util.c | |
| parent | iomap: use filemap_range_needs_writeback() for O_DIRECT reads (diff) | |
| download | linux-rng-d31fa86a27b3ecdc32bf19326c4d3bba854542e2.tar.xz linux-rng-d31fa86a27b3ecdc32bf19326c4d3bba854542e2.zip | |
mm/filemap: use filemap_read_page in filemap_fault
After splitting generic_file_buffered_read() into smaller parts, it turns
out we can reuse one of the parts in filemap_fault(). This fixes an
oversight -- waiting for the I/O to complete is now interruptible by a
fatal signal. And it saves us a few bytes of text in an unlikely path.
$ ./scripts/bloat-o-meter before.o after.o
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-207 (-207)
Function old new delta
filemap_fault 2187 1980 -207
Total: Before=37491, After=37284, chg -0.55%
Link: https://lkml.kernel.org/r/20210226140011.2883498-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/util.c')
0 files changed, 0 insertions, 0 deletions