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JFS: Fix i_blocks accounting when allocation fails 

A failure in dbAlloc caused a directory's i_blocks to be incorrectly
incremented, causing jfs_fsck to find the inode to be corrupt.

Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
This commit is contained in:
Dave Kleikamp 2005-07-26 09:29:13 -05:00
parent c2783f3a62
commit 18190cc08d
1 changed files with 9 additions and 4 deletions
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13
fs/jfs/jfs_dtree.c
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@ -381,9 +381,12 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
* It's time to move the inline table to an external * It's time to move the inline table to an external
* page and begin to build the xtree * page and begin to build the xtree
*/ */
if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage) || if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage))
dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) goto clean_up;
goto clean_up; /* No space */ if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) {
DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
goto clean_up;
}
/* /*
* Save the table, we're going to overwrite it with the * Save the table, we're going to overwrite it with the
@ -397,13 +400,15 @@ static u32 add_index(tid_t tid, struct inode *ip, s64 bn, int slot)
xtInitRoot(tid, ip); xtInitRoot(tid, ip);
/* /*
* Allocate the first block & add it to the xtree * Add the first block to the xtree
*/ */
if (xtInsert(tid, ip, 0, 0, sbi->nbperpage, &xaddr, 0)) { if (xtInsert(tid, ip, 0, 0, sbi->nbperpage, &xaddr, 0)) {
/* This really shouldn't fail */ /* This really shouldn't fail */
jfs_warn("add_index: xtInsert failed!"); jfs_warn("add_index: xtInsert failed!");
memcpy(&jfs_ip->i_dirtable, temp_table, memcpy(&jfs_ip->i_dirtable, temp_table,
sizeof (temp_table)); sizeof (temp_table));
dbFree(ip, xaddr, sbi->nbperpage);
DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
goto clean_up; goto clean_up;
} }
ip->i_size = PSIZE; ip->i_size = PSIZE;