From 6ca470d7b5e7639b7925b3202e796282703b6d5d Mon Sep 17 00:00:00 2001 From: Dmitry Monakhov Date: Mon, 4 Mar 2013 00:50:47 -0500 Subject: ext4: invalidate extent status tree during extent migration mext_replace_branches() will change inode's extents layout so we have to drop corresponding cache. TESTCASE: 301'th xfstest was not yet accepted to official xfstest's branch and can be found here: https://github.com/dmonakhov/xfstests/commit/7b7efeee30a41109201e2040034e71db9b66ddc0 Signed-off-by: Dmitry Monakhov Signed-off-by: "Theodore Ts'o" Reviewed-by: Jan Kara --- fs/ext4/move_extent.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'fs/ext4/move_extent.c') diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c index d78c33e..c1f15b2 100644 --- a/fs/ext4/move_extent.c +++ b/fs/ext4/move_extent.c @@ -666,6 +666,14 @@ mext_replace_branches(handle_t *handle, struct inode *orig_inode, int replaced_count = 0; int dext_alen; + *err = ext4_es_remove_extent(orig_inode, from, count); + if (*err) + goto out; + + *err = ext4_es_remove_extent(donor_inode, from, count); + if (*err) + goto out; + /* Get the original extent for the block "orig_off" */ *err = get_ext_path(orig_inode, orig_off, &orig_path); if (*err) -- cgit v1.1 From 0e401101db49959f5783f6ee9e676124b5a183ac Mon Sep 17 00:00:00 2001 From: Dmitry Monakhov Date: Mon, 18 Mar 2013 11:40:19 -0400 Subject: ext4: fix memory leakage in mext_check_coverage Regression was introduced by following commit 8c854473 TESTCASE (git://oss.sgi.com/xfs/cmds/xfstests.git): #while true;do ./check 301 || break ;done Also fix potential memory leakage in get_ext_path() once ext4_ext_find_extent() have failed. Signed-off-by: Dmitry Monakhov Signed-off-by: "Theodore Ts'o" --- fs/ext4/move_extent.c | 35 +++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 16 deletions(-) (limited to 'fs/ext4/move_extent.c') diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c index c1f15b2..bbae4ed1 100644 --- a/fs/ext4/move_extent.c +++ b/fs/ext4/move_extent.c @@ -32,16 +32,18 @@ */ static inline int get_ext_path(struct inode *inode, ext4_lblk_t lblock, - struct ext4_ext_path **path) + struct ext4_ext_path **orig_path) { int ret = 0; + struct ext4_ext_path *path; - *path = ext4_ext_find_extent(inode, lblock, *path); - if (IS_ERR(*path)) { - ret = PTR_ERR(*path); - *path = NULL; - } else if ((*path)[ext_depth(inode)].p_ext == NULL) + path = ext4_ext_find_extent(inode, lblock, *orig_path); + if (IS_ERR(path)) + ret = PTR_ERR(path); + else if (path[ext_depth(inode)].p_ext == NULL) ret = -ENODATA; + else + *orig_path = path; return ret; } @@ -611,24 +613,25 @@ mext_check_coverage(struct inode *inode, ext4_lblk_t from, ext4_lblk_t count, { struct ext4_ext_path *path = NULL; struct ext4_extent *ext; + int ret = 0; ext4_lblk_t last = from + count; while (from < last) { *err = get_ext_path(inode, from, &path); if (*err) - return 0; + goto out; ext = path[ext_depth(inode)].p_ext; - if (!ext) { - ext4_ext_drop_refs(path); - return 0; - } - if (uninit != ext4_ext_is_uninitialized(ext)) { - ext4_ext_drop_refs(path); - return 0; - } + if (uninit != ext4_ext_is_uninitialized(ext)) + goto out; from += ext4_ext_get_actual_len(ext); ext4_ext_drop_refs(path); } - return 1; + ret = 1; +out: + if (path) { + ext4_ext_drop_refs(path); + kfree(path); + } + return ret; } /** -- cgit v1.1