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| author | Theodore Ts'o <tytso@mit.edu> | 2013-02-09 12:50:27 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-02-09 12:50:27 -0500 |
| commit | 4b217630d0ec277c961e57f6d2985433b352c2ce (patch) | |
| tree | f3c5b921d2dd825677b73ee4d4fb97c586d7661a | |
| parent | 8dcfaad244cdfa245cc2b4ddf42cea5fd8b80ece (diff) | |
| download | linux-stable-4b217630d0ec277c961e57f6d2985433b352c2ce.tar.gz linux-stable-4b217630d0ec277c961e57f6d2985433b352c2ce.tar.bz2 linux-stable-4b217630d0ec277c961e57f6d2985433b352c2ce.zip | |
ext4: fix the number of credits needed for ext4_ext_migrate()
The migration ioctl creates a temporary inode. Since this inode is
never linked to a directory, we don't need to reserve journal credits
required for modifying the directory.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/ext4/migrate.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index 4e4fcfd342f8..480acf4a085f 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -456,11 +456,14 @@ int ext4_ext_migrate(struct inode *inode) */ return retval; + /* + * Worst case we can touch the allocation bitmaps, a bgd + * block, and a block to link in the orphan list. We do need + * need to worry about credits for modifying the quota inode. + */ handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, - EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + - EXT4_INDEX_EXTRA_TRANS_BLOCKS + 3 + - EXT4_MAXQUOTAS_INIT_BLOCKS(inode->i_sb) - + 1); + 4 + EXT4_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb)); + if (IS_ERR(handle)) { retval = PTR_ERR(handle); return retval; |