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ext4: use atomic functions to set bh_state

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Use the BUFFER_FNS functions (set_buffer_foo) to set buffer
head state atomically instead of nonatomic __set_bit().

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Eric Sandeen 2008-07-11 19:27:31 -04:00 committed by Theodore Ts'o
parent 47b4a50beb
commit 953e622b60
1 changed files with 3 additions and 4 deletions
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7
fs/ext4/extents.c
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@ -2622,8 +2622,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
*/ */
if (allocated > max_blocks) if (allocated > max_blocks)
allocated = max_blocks; allocated = max_blocks;
/* mark the buffer unwritten */ set_buffer_unwritten(bh_result);
__set_bit(BH_Unwritten, &bh_result->b_state);
goto out2; goto out2;
} }
@ -2729,7 +2728,7 @@ outnew:
if (extend_disksize && inode->i_size > EXT4_I(inode)->i_disksize) if (extend_disksize && inode->i_size > EXT4_I(inode)->i_disksize)
EXT4_I(inode)->i_disksize = inode->i_size; EXT4_I(inode)->i_disksize = inode->i_size;
__set_bit(BH_New, &bh_result->b_state); set_buffer_new(bh_result);
/* Cache only when it is _not_ an uninitialized extent */ /* Cache only when it is _not_ an uninitialized extent */
if (create != EXT4_CREATE_UNINITIALIZED_EXT) if (create != EXT4_CREATE_UNINITIALIZED_EXT)
@ -2739,7 +2738,7 @@ out:
if (allocated > max_blocks) if (allocated > max_blocks)
allocated = max_blocks; allocated = max_blocks;
ext4_ext_show_leaf(inode, path); ext4_ext_show_leaf(inode, path);
__set_bit(BH_Mapped, &bh_result->b_state); set_buffer_mapped(bh_result);
bh_result->b_bdev = inode->i_sb->s_bdev; bh_result->b_bdev = inode->i_sb->s_bdev;
bh_result->b_blocknr = newblock; bh_result->b_blocknr = newblock;
out2: out2: