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| author | Dmitry Monakhov <dmonakhov@sw.ru> | 2007-07-18 09:09:15 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2007-07-18 09:09:15 -0400 |
| commit | e9f410b1c035b6e63f0b4c3d6cfe4298d6a04492 (patch) | |
| tree | 8c7cb3c756102e201025086205bd148a5bcc6904 /fs/ext4/extents.c | |
| parent | 26d535ed24f74ce949d7b49e40574c45cd845cdd (diff) | |
| download | linux-e9f410b1c035b6e63f0b4c3d6cfe4298d6a04492.tar.gz linux-e9f410b1c035b6e63f0b4c3d6cfe4298d6a04492.tar.bz2 linux-e9f410b1c035b6e63f0b4c3d6cfe4298d6a04492.zip | |
ext4: extent macros cleanup
Use the EXT_LAST_INDEX macro; that's what it's there for.
Clean up ext4_ext_ext_grow_indepth() so the correct EXT_FIRST_INDEX or
EXT_FIRST_MACRO is used as necessary. The two macros are equivalent, so
the C will collapse the if statement out, but it makes the code much
more readable.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Acked-by: Alex Tomas <alex@clusterfs.com>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Singed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 11ce15d91acc..750c46f7d893 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -376,7 +376,7 @@ ext4_ext_binsearch_idx(struct inode *inode, struct ext4_ext_path *path, int bloc ext_debug("binsearch for %d(idx): ", block); l = EXT_FIRST_INDEX(eh) + 1; - r = EXT_FIRST_INDEX(eh) + le16_to_cpu(eh->eh_entries) - 1; + r = EXT_LAST_INDEX(eh); while (l <= r) { m = l + (r - l) / 2; if (block < le32_to_cpu(m->ei_block)) @@ -441,7 +441,7 @@ ext4_ext_binsearch(struct inode *inode, struct ext4_ext_path *path, int block) ext_debug("binsearch for %d: ", block); l = EXT_FIRST_EXTENT(eh) + 1; - r = EXT_FIRST_EXTENT(eh) + le16_to_cpu(eh->eh_entries) - 1; + r = EXT_LAST_EXTENT(eh); while (l <= r) { m = l + (r - l) / 2; @@ -924,8 +924,13 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode, curp->p_hdr->eh_max = cpu_to_le16(ext4_ext_space_root_idx(inode)); curp->p_hdr->eh_entries = cpu_to_le16(1); curp->p_idx = EXT_FIRST_INDEX(curp->p_hdr); - /* FIXME: it works, but actually path[0] can be index */ - curp->p_idx->ei_block = EXT_FIRST_EXTENT(path[0].p_hdr)->ee_block; + + if (path[0].p_hdr->eh_depth) + curp->p_idx->ei_block = + EXT_FIRST_INDEX(path[0].p_hdr)->ei_block; + else + curp->p_idx->ei_block = + EXT_FIRST_EXTENT(path[0].p_hdr)->ee_block; ext4_idx_store_pblock(curp->p_idx, newblock); neh = ext_inode_hdr(inode); |