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author | Eric Biggers <ebiggers@google.com> | 2021-07-16 09:39:13 -0500 |
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committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-11-17 11:28:22 -0800 |
commit | 3d697a4a6b7dab8fb8a8c928b640999af3a08d87 (patch) | |
tree | f68807abdbcf9ad45ae4bb0e2c3edc6dd86b99e2 /fs/coredump.c | |
parent | 3271d7eb00f1df82d9ea26b359ed065129639f7c (diff) | |
download | linux-3d697a4a6b7dab8fb8a8c928b640999af3a08d87.tar.bz2 |
f2fs: rework write preallocations
f2fs_write_begin() assumes that all blocks were preallocated by
default unless FI_NO_PREALLOC is explicitly set. This invites data
corruption, as there are cases in which not all blocks are preallocated.
Commit 47501f87c61a ("f2fs: preallocate DIO blocks when forcing
buffered_io") fixed one case, but there are others remaining.
Fix up this logic by replacing this flag with FI_PREALLOCATED_ALL, which
only gets set if all blocks for the current write were preallocated.
Also clean up f2fs_preallocate_blocks(), move it to file.c, and make it
handle some of the logic that was previously in write_iter() directly.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/coredump.c')
0 files changed, 0 insertions, 0 deletions