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![]() It actually goes back to 2004 ([PATCH] Concurrent O_SYNC write support) when sync_page_range() had been introduced; generic_file_write{,v}() correctly synced pos_after_write - written .. pos_after_write - 1 but generic_file_aio_write() synced pos_before_write .. pos_before_write + written - 1 instead. Which is not the same thing with O_APPEND, obviously. A couple of years later correct variant had been killed off when everything switched to use of generic_file_aio_write(). All users of generic_file_aio_write() are affected, and the same bug has been copied into other instances of ->aio_write(). The fix is trivial; the only subtle point is that generic_write_sync() ought to be inlined to avoid calculations useless for the majority of calls. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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.. | ||
aops.c | ||
aops.h | ||
attrib.c | ||
attrib.h | ||
bitmap.c | ||
bitmap.h | ||
collate.c | ||
collate.h | ||
compress.c | ||
debug.c | ||
debug.h | ||
dir.c | ||
dir.h | ||
endian.h | ||
file.c | ||
index.c | ||
index.h | ||
inode.c | ||
inode.h | ||
Kconfig | ||
layout.h | ||
lcnalloc.c | ||
lcnalloc.h | ||
logfile.c | ||
logfile.h | ||
Makefile | ||
malloc.h | ||
mft.c | ||
mft.h | ||
mst.c | ||
namei.c | ||
ntfs.h | ||
quota.c | ||
quota.h | ||
runlist.c | ||
runlist.h | ||
super.c | ||
sysctl.c | ||
sysctl.h | ||
time.h | ||
types.h | ||
unistr.c | ||
upcase.c | ||
usnjrnl.c | ||
usnjrnl.h | ||
volume.h |