diff options
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/ext4.h | 30 | ||||
| -rw-r--r-- | fs/ext4/inode.c | 14 | ||||
| -rw-r--r-- | fs/ext4/page-io.c | 10 |
3 files changed, 33 insertions, 21 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 393689dfa1af..c04743519865 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1511,15 +1511,6 @@ static inline int ext4_valid_inum(struct super_block *sb, unsigned long ino) ino <= le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count)); } -static inline void ext4_set_io_unwritten_flag(struct inode *inode, - struct ext4_io_end *io_end) -{ - if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) { - io_end->flag |= EXT4_IO_END_UNWRITTEN; - atomic_inc(&EXT4_I(inode)->i_unwritten); - } -} - /* * Inode dynamic state flags */ @@ -3293,6 +3284,27 @@ extern wait_queue_head_t ext4__ioend_wq[EXT4_WQ_HASH_SZ]; extern int ext4_resize_begin(struct super_block *sb); extern void ext4_resize_end(struct super_block *sb); +static inline void ext4_set_io_unwritten_flag(struct inode *inode, + struct ext4_io_end *io_end) +{ + if (!(io_end->flag & EXT4_IO_END_UNWRITTEN)) { + io_end->flag |= EXT4_IO_END_UNWRITTEN; + atomic_inc(&EXT4_I(inode)->i_unwritten); + } +} + +static inline void ext4_clear_io_unwritten_flag(ext4_io_end_t *io_end) +{ + struct inode *inode = io_end->inode; + + if (io_end->flag & EXT4_IO_END_UNWRITTEN) { + io_end->flag &= ~EXT4_IO_END_UNWRITTEN; + /* Wake up anyone waiting on unwritten extent conversion */ + if (atomic_dec_and_test(&EXT4_I(inode)->i_unwritten)) + wake_up_all(ext4_ioend_wq(inode)); + } +} + #endif /* __KERNEL__ */ #define EFSBADCRC EBADMSG /* Bad CRC detected */ diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b2e9576450eb..dab84a2530ff 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3289,22 +3289,32 @@ out: } #endif -static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, +static int ext4_end_io_dio(struct kiocb *iocb, loff_t offset, ssize_t size, void *private) { ext4_io_end_t *io_end = private; /* if not async direct IO just return */ if (!io_end) - return; + return 0; ext_debug("ext4_end_io_dio(): io_end 0x%p " "for inode %lu, iocb 0x%p, offset %llu, size %zd\n", io_end, io_end->inode->i_ino, iocb, offset, size); + /* + * Error during AIO DIO. We cannot convert unwritten extents as the + * data was not written. Just clear the unwritten flag and drop io_end. + */ + if (size <= 0) { + ext4_clear_io_unwritten_flag(io_end); + size = 0; + } io_end->offset = offset; io_end->size = size; ext4_put_io_end(io_end); + + return 0; } /* diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c index 349d7aa04fe7..d77d15f4b674 100644 --- a/fs/ext4/page-io.c +++ b/fs/ext4/page-io.c @@ -136,16 +136,6 @@ static void ext4_release_io_end(ext4_io_end_t *io_end) kmem_cache_free(io_end_cachep, io_end); } -static void ext4_clear_io_unwritten_flag(ext4_io_end_t *io_end) -{ - struct inode *inode = io_end->inode; - - io_end->flag &= ~EXT4_IO_END_UNWRITTEN; - /* Wake up anyone waiting on unwritten extent conversion */ - if (atomic_dec_and_test(&EXT4_I(inode)->i_unwritten)) - wake_up_all(ext4_ioend_wq(inode)); -} - /* * Check a range of space and convert unwritten extents to written. Note that * we are protected from truncate touching same part of extent tree by the |