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| author | Mingming Cao <cmm@us.ibm.com> | 2008-07-11 19:27:31 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-07-11 19:27:31 -0400 |
| commit | 07031431072ece801d53d2c03d5e5bb21f4f64a4 (patch) | |
| tree | b3075b21242bda4e16c35814fceeaef64a027647 /fs/ext4/ext4.h | |
| parent | d755fb384250d6bd7fd18a0930e71965acc8e72e (diff) | |
| download | blackbird-op-linux-07031431072ece801d53d2c03d5e5bb21f4f64a4.tar.gz blackbird-op-linux-07031431072ece801d53d2c03d5e5bb21f4f64a4.zip | |
ext4: mballoc avoid use root reserved blocks for non root allocation
mballoc allocation missed check for blocks reserved for root users. Add
ext4_has_free_blocks() check before allocation. Also modified
ext4_has_free_blocks() to support multiple block allocation request.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index e622ade69d5c..2c4b48519c8b 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -979,6 +979,8 @@ extern ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode, unsigned long *count, int *errp); extern ext4_fsblk_t ext4_old_new_blocks(handle_t *handle, struct inode *inode, ext4_fsblk_t goal, unsigned long *count, int *errp); +extern ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi, + ext4_fsblk_t nblocks); extern void ext4_free_blocks (handle_t *handle, struct inode *inode, ext4_fsblk_t block, unsigned long count, int metadata); extern void ext4_free_blocks_sb (handle_t *handle, struct super_block *sb, |
