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| author | Jan Kara <jack@suse.cz> | 2023-01-24 12:13:57 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2023-01-26 16:46:36 +0100 |
| commit | c694e40ba231e854fcddd25cce46db3918fca291 (patch) | |
| tree | de802f5fd616a1cef0c0e1c6e99074849902f618 /fs/udf/inode.c | |
| parent | 60b99a1b9fa731453e1b69a3e0b3e4dcab7a6ea5 (diff) | |
| download | linux-stable-c694e40ba231e854fcddd25cce46db3918fca291.tar.gz linux-stable-c694e40ba231e854fcddd25cce46db3918fca291.tar.bz2 linux-stable-c694e40ba231e854fcddd25cce46db3918fca291.zip | |
udf: Convert all file types to use udf_write_end()
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, create udf_write_end() function that is able to handle both
normal and in-ICB files.
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 | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index afe061d2020e..094ac6f22c72 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -257,6 +257,26 @@ int udf_write_begin(struct file *file, struct address_space *mapping, return 0; } +int udf_write_end(struct file *file, struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *page, void *fsdata) +{ + struct inode *inode = file_inode(file); + loff_t last_pos; + + if (UDF_I(inode)->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) + return generic_write_end(file, mapping, pos, len, copied, page, + fsdata); + last_pos = pos + copied; + if (last_pos > inode->i_size) + i_size_write(inode, last_pos); + set_page_dirty(page); + unlock_page(page); + put_page(page); + + return copied; +} + ssize_t udf_direct_IO(struct kiocb *iocb, struct iov_iter *iter) { struct file *file = iocb->ki_filp; @@ -286,7 +306,7 @@ const struct address_space_operations udf_aops = { .readahead = udf_readahead, .writepages = udf_writepages, .write_begin = udf_write_begin, - .write_end = generic_write_end, + .write_end = udf_write_end, .direct_IO = udf_direct_IO, .bmap = udf_bmap, .migrate_folio = buffer_migrate_folio, |