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| author | Amir Goldstein <amir73il@gmail.com> | 2023-11-22 14:27:08 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2023-11-24 09:22:28 +0100 |
| commit | e389b76a7ee1b62392ab52c22f9ba81f23145824 (patch) | |
| tree | 613fced889982825013473b29d2a7c011cc2b6ce /fs/coda | |
| parent | 2f4d8ad82511a336f8a805e3759c5189a25bb286 (diff) | |
| download | linux-e389b76a7ee1b62392ab52c22f9ba81f23145824.tar.gz linux-e389b76a7ee1b62392ab52c22f9ba81f23145824.tar.bz2 linux-e389b76a7ee1b62392ab52c22f9ba81f23145824.zip | |
coda: change locking order in coda_file_write_iter()
The coda host file is a backing file for the coda inode on a different
filesystem than the coda inode.
Change the locking order to take the coda inode lock before taking
the backing host file freeze protection, same as in ovl_write_iter()
and in network filesystems that use cachefiles.
Link: https://lore.kernel.org/r/CAOQ4uxjcnwuF1gMxe64WLODGA_MyAy8x-DtqkCUxqVQKk3Xbng@mail.gmail.com/
Acked-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Link: https://lore.kernel.org/r/20231122122715.2561213-10-amir73il@gmail.com
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/coda')
| -rw-r--r-- | fs/coda/file.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/coda/file.c b/fs/coda/file.c index 16acc58311ea..e62315c37386 100644 --- a/fs/coda/file.c +++ b/fs/coda/file.c @@ -79,14 +79,14 @@ coda_file_write_iter(struct kiocb *iocb, struct iov_iter *to) if (ret) goto finish_write; - file_start_write(host_file); inode_lock(coda_inode); + file_start_write(host_file); ret = vfs_iter_write(cfi->cfi_container, to, &iocb->ki_pos, 0); coda_inode->i_size = file_inode(host_file)->i_size; coda_inode->i_blocks = (coda_inode->i_size + 511) >> 9; inode_set_mtime_to_ts(coda_inode, inode_set_ctime_current(coda_inode)); - inode_unlock(coda_inode); file_end_write(host_file); + inode_unlock(coda_inode); finish_write: venus_access_intent(coda_inode->i_sb, coda_i2f(coda_inode), |