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| author | Nikolay Borisov <nborisov@suse.com> | 2019-02-10 23:04:16 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-02-10 23:04:16 -0500 |
| commit | 82dd124c40b8cda710878b88fb0182301c040ffe (patch) | |
| tree | ef381c696fc85b6d9c3cf555ca5d6a236c6e39de /fs/ext4 | |
| parent | 53cf978457325d8fb2cdecd7981b31a8229e446e (diff) | |
| download | linux-82dd124c40b8cda710878b88fb0182301c040ffe.tar.gz linux-82dd124c40b8cda710878b88fb0182301c040ffe.tar.bz2 linux-82dd124c40b8cda710878b88fb0182301c040ffe.zip | |
ext4: replace opencoded i_writecount usage with inode_is_open_for_write()
There is a function which clearly conveys the objective of checking
i_writecount. Additionally the usage in ext4_mb_initialize_context was
wrong, since a node would have wrongfully been reported as writable if
i_writecount had a negative value (MMAP_DENY_WRITE).
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 2 | ||||
| -rw-r--r-- | fs/ext4/mballoc.c | 7 |
2 files changed, 4 insertions, 5 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 34d7e0703cc6..213d1857a7cf 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -391,7 +391,7 @@ void ext4_da_update_reserve_space(struct inode *inode, * inode's preallocations. */ if ((ei->i_reserved_data_blocks == 0) && - (atomic_read(&inode->i_writecount) == 0)) + !inode_is_open_for_write(inode)) ext4_discard_preallocations(inode); } diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index e2248083cdca..6fb76d408093 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -4176,9 +4176,8 @@ static void ext4_mb_group_or_file(struct ext4_allocation_context *ac) isize = (i_size_read(ac->ac_inode) + ac->ac_sb->s_blocksize - 1) >> bsbits; - if ((size == isize) && - !ext4_fs_is_busy(sbi) && - (atomic_read(&ac->ac_inode->i_writecount) == 0)) { + if ((size == isize) && !ext4_fs_is_busy(sbi) && + !inode_is_open_for_write(ac->ac_inode)) { ac->ac_flags |= EXT4_MB_HINT_NOPREALLOC; return; } @@ -4258,7 +4257,7 @@ ext4_mb_initialize_context(struct ext4_allocation_context *ac, (unsigned) ar->goal, ac->ac_flags, ac->ac_2order, (unsigned) ar->lleft, (unsigned) ar->pleft, (unsigned) ar->lright, (unsigned) ar->pright, - atomic_read(&ar->inode->i_writecount) ? "" : "non-"); + inode_is_open_for_write(ar->inode) ? "" : "non-"); return 0; } |