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bcachefs: Add an O_DIRECT option (for userspace)

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Sometimes we see IO errors due to O_DIRECT alignment issues - having an
option to use buffered IO will be helpful.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2022-07-21 15:41:29 -04:00 committed by Kent Overstreet
parent 01eed77178
commit 91f1b9fdd2
1 changed files with 5 additions and 0 deletions
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5
fs/bcachefs/opts.h
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@ -346,6 +346,11 @@ enum opt_type {
OPT_BOOL(), \
BCH2_NO_SB_OPT, false, \
NULL, "Don't open device in exclusive mode") \
x(direct_io, u8, \
OPT_FS|OPT_MOUNT, \
OPT_BOOL(), \
BCH2_NO_SB_OPT, true, \
NULL, "Use O_DIRECT (userspace only)") \
x(sb, u64, \
OPT_MOUNT, \
OPT_UINT(0, S64_MAX), \