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| author | Jan Kara <jack@suse.cz> | 2023-01-24 11:59:32 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2023-01-26 16:46:35 +0100 |
| commit | d5abfb1b7b26086db19ee430dea7282f01d4ef44 (patch) | |
| tree | 72efb488b61b015e89e43ea65cfbd7ffcc437aa3 /fs/udf/inode.c | |
| parent | 79d3c6dbada4a20193467f72c531ab99c173bf4f (diff) | |
| download | linux-stable-d5abfb1b7b26086db19ee430dea7282f01d4ef44.tar.gz linux-stable-d5abfb1b7b26086db19ee430dea7282f01d4ef44.tar.bz2 linux-stable-d5abfb1b7b26086db19ee430dea7282f01d4ef44.zip | |
udf: Convert in-ICB files to use udf_direct_IO()
Switching address_space_operations while a file is used is difficult to
do in a race-free way. To be able to use single address_space_operations
in UDF, make in-ICB files use udf_direct_IO().
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/inode.c')
| -rw-r--r-- | fs/udf/inode.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index f0ab4dd0d8ce..d01b97e9e4f4 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -243,7 +243,7 @@ static int udf_write_begin(struct file *file, struct address_space *mapping, return ret; } -static ssize_t udf_direct_IO(struct kiocb *iocb, struct iov_iter *iter) +ssize_t udf_direct_IO(struct kiocb *iocb, struct iov_iter *iter) { struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; @@ -251,6 +251,9 @@ static ssize_t udf_direct_IO(struct kiocb *iocb, struct iov_iter *iter) size_t count = iov_iter_count(iter); ssize_t ret; + /* Fallback to buffered IO for in-ICB files */ + if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) + return 0; ret = blockdev_direct_IO(iocb, inode, iter, udf_get_block); if (unlikely(ret < 0 && iov_iter_rw(iter) == WRITE)) udf_write_failed(mapping, iocb->ki_pos + count); |