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authorCarlos Maiolino <cmaiolino@redhat.com>2012-10-20 11:08:19 -0300
committerBen Myers <bpm@sgi.com>2012-11-02 17:13:12 -0500
commitcd856db69c88db438215244571957d812bdc6813 (patch)
treebcd2dd9011439cb7ea072386c7f6575a225b7579 /fs/xfs
parent531c3bdc8662e1a83f8ec80dc3346b1284877c0a (diff)
xfs: Update inode alloc comments
I found some out of date comments while studying the inode allocation code, so I believe it's worth to have these comments updated. It basically rewrites the comment regarding to "call_again" variable, which is not used anymore, but instead, callers of xfs_ialloc() decides if it needs to be called again relying only if ialloc_context is NULL or not. Also did some small changes in another comment that I thought to be pertinent to the current behaviour of these functions and some alignment on both comments. Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_ialloc.c6
-rw-r--r--fs/xfs/xfs_inode.c18
2 files changed, 12 insertions, 12 deletions
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index c5c4ef4f2bd..37753e1c853 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -877,9 +877,9 @@ error0:
* This function is designed to be called twice if it has to do an allocation
* to make more free inodes. On the first call, *IO_agbp should be set to NULL.
* If an inode is available without having to performn an allocation, an inode
- * number is returned. In this case, *IO_agbp would be NULL. If an allocation
- * needes to be done, xfs_dialloc would return the current AGI buffer in
- * *IO_agbp. The caller should then commit the current transaction, allocate a
+ * number is returned. In this case, *IO_agbp is set to NULL. If an allocation
+ * needs to be done, xfs_dialloc returns the current AGI buffer in *IO_agbp.
+ * The caller should then commit the current transaction, allocate a
* new transaction, and call xfs_dialloc() again, passing in the previous value
* of *IO_agbp. IO_agbp should be held across the transactions. Since the AGI
* buffer is locked across the two calls, the second call is guaranteed to have
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index bba8f37525b..95f7a73b05c 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1104,16 +1104,16 @@ xfs_iread_extents(
* set according to the contents of the given cred structure.
*
* Use xfs_dialloc() to allocate the on-disk inode. If xfs_dialloc()
- * has a free inode available, call xfs_iget()
- * to obtain the in-core version of the allocated inode. Finally,
- * fill in the inode and log its initial contents. In this case,
- * ialloc_context would be set to NULL and call_again set to false.
+ * has a free inode available, call xfs_iget() to obtain the in-core
+ * version of the allocated inode. Finally, fill in the inode and
+ * log its initial contents. In this case, ialloc_context would be
+ * set to NULL.
*
- * If xfs_dialloc() does not have an available inode,
- * it will replenish its supply by doing an allocation. Since we can
- * only do one allocation within a transaction without deadlocks, we
- * must commit the current transaction before returning the inode itself.
- * In this case, therefore, we will set call_again to true and return.
+ * If xfs_dialloc() does not have an available inode, it will replenish
+ * its supply by doing an allocation. Since we can only do one
+ * allocation within a transaction without deadlocks, we must commit
+ * the current transaction before returning the inode itself.
+ * In this case, therefore, we will set ialloc_context and return.
* The caller should then commit the current transaction, start a new
* transaction, and call xfs_ialloc() again to actually get the inode.
*