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authorChristoph Hellwig <hch@lst.de>2016-04-06 00:53:29 +0300
committerDave Chinner <david@fromorbit.com>2016-04-06 00:53:29 +0300
commit30ee052e12b97c190b27fe6f20e3ac3047df7b5c (patch)
tree92b34446e88e72e6ddce730b1f1b4192614a45be /fs/xfs/xfs_inode_item.c
parentbfe8804d908a791b16e3686c101f0d7eca9fb5b9 (diff)
downloadlinux-30ee052e12b97c190b27fe6f20e3ac3047df7b5c.tar.xz
xfs: optimize inline symlinks
By overallocating the in-core inode fork data buffer and zero terminating the link target in xfs_init_local_fork we can avoid the memory allocation in ->follow_link. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_inode_item.c')
-rw-r--r--fs/xfs/xfs_inode_item.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index c48b5b18d771..37e23c7a5684 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -210,7 +210,7 @@ xfs_inode_item_format_data_fork(
*/
data_bytes = roundup(ip->i_df.if_bytes, 4);
ASSERT(ip->i_df.if_real_bytes == 0 ||
- ip->i_df.if_real_bytes == data_bytes);
+ ip->i_df.if_real_bytes >= data_bytes);
ASSERT(ip->i_df.if_u1.if_data != NULL);
ASSERT(ip->i_d.di_size > 0);
xlog_copy_iovec(lv, vecp, XLOG_REG_TYPE_ILOCAL,
@@ -305,7 +305,7 @@ xfs_inode_item_format_attr_fork(
*/
data_bytes = roundup(ip->i_afp->if_bytes, 4);
ASSERT(ip->i_afp->if_real_bytes == 0 ||
- ip->i_afp->if_real_bytes == data_bytes);
+ ip->i_afp->if_real_bytes >= data_bytes);
ASSERT(ip->i_afp->if_u1.if_data != NULL);
xlog_copy_iovec(lv, vecp, XLOG_REG_TYPE_IATTR_LOCAL,
ip->i_afp->if_u1.if_data,