Unverified Commit 7b2b67db authored by Jens Axboe's avatar Jens Axboe Committed by Christian Brauner
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Revert "Disable FOP_DONTCACHE for now due to bugs" 

This reverts commit 478ad02d.

Both the read and write side dirty && writeback races should be resolved
now, revert the commit that disabled FOP_DONTCACHE for filesystems.

Link: https://lore.kernel.org/linux-fsdevel/20250525083209.GS2023217@ZenIV/


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/20250527133255.452431-4-axboe@kernel.dk


Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 25b065a7

include/linux/fs.h

+1 −1
Original line number Diff line number Diff line
@@ -2207,7 +2207,7 @@ struct file_operations { 
/* Supports asynchronous lock callbacks */

#define FOP_ASYNC_LOCK		((__force fop_flags_t)(1 << 6))

/* File system supports uncached read/write buffered IO */

#define FOP_DONTCACHE		0 /* ((__force fop_flags_t)(1 << 7)) */

#define FOP_DONTCACHE		((__force fop_flags_t)(1 << 7))



/* Wrap a directory iterator that needs exclusive inode access */

int wrap_directory_iterator(struct file *, struct dir_context *,