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-   -   libgfs2: Remove exit calls from inode_read and inode_get (http://www.linux-archive.org/cluster-development/698484-libgfs2-remove-exit-calls-inode_read-inode_get.html)

Andrew Price 08-28-2012 03:36 PM

libgfs2: Remove exit calls from inode_read and inode_get
 
- Remove exit calls from inode_read and inode_get
- Fix error handling for the functions up the call tree
- The two functions are almost identical so define inode_read using
inode_get
- Update their names with an lgfs2_ prefix
- Move block_is_in_per_node into savemeta.c and make it static

Signed-off-by: Andrew Price <anprice@redhat.com>
---
gfs2/convert/gfs2_convert.c | 24 ++++++++++++----
gfs2/edit/extended.c | 24 ++++++++++++----
gfs2/edit/hexedit.c | 47 ++++++++++++-------------------
gfs2/edit/hexedit.h | 1 -
gfs2/edit/savemeta.c | 56 ++++++++++++++++++++++++++++++++-----
gfs2/fsck/fs_recovery.c | 4 ++-
gfs2/fsck/initialize.c | 68 +++++++++++++++++++++++++++++++++------------
gfs2/fsck/metawalk.c | 4 +--
gfs2/libgfs2/fs_ops.c | 34 +++++++++++++----------
gfs2/libgfs2/libgfs2.h | 4 +--
gfs2/libgfs2/structures.c | 8 ++++--
gfs2/mkfs/main_grow.c | 7 +++--
12 files changed, 192 insertions(+), 89 deletions(-)

diff --git a/gfs2/convert/gfs2_convert.c b/gfs2/convert/gfs2_convert.c
index 9944d23..51ec256 100644
--- a/gfs2/convert/gfs2_convert.c
+++ b/gfs2/convert/gfs2_convert.c
@@ -1092,7 +1092,9 @@ static int fetch_inum(struct gfs2_sbd *sbp, uint64_t iblock,
{
struct gfs2_inode *fix_inode;

- fix_inode = inode_read(sbp, iblock);
+ fix_inode = lgfs2_inode_read(sbp, iblock);
+ if (fix_inode == NULL)
+ return 1;
inum->no_formal_ino = fix_inode->i_di.di_num.no_formal_ino;
inum->no_addr = fix_inode->i_di.di_num.no_addr;
if (eablk)
@@ -1289,7 +1291,9 @@ static int process_directory(struct gfs2_sbd *sbp, uint64_t dirblock, uint64_t d
struct gfs2_inode *dip;
int error = 0;
/* read in the directory inode */
- dip = inode_read(sbp, dirblock);
+ dip = lgfs2_inode_read(sbp, dirblock);
+ if (dip == NULL)
+ return -1;
/* fix the directory: either exhash (leaves) or linear (stuffed) */
if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
if (fix_one_directory_exhash(sbp, dip, dentmod)) {
@@ -1391,7 +1395,9 @@ static int fix_cdpn_symlinks(struct gfs2_sbd *sbp, osi_list_t *cdpn_to_fix)

/* initialize the symlink inode to be a directory */
bh = init_dinode(sbp, &fix, S_IFDIR | 0755, 0, &dir);
- fix_inode = inode_get(sbp, bh);
+ fix_inode = lgfs2_inode_get(sbp, bh);
+ if (fix_inode == NULL)
+ return -1;
fix_inode->i_di.di_eattr = eablk; /*fix extended attribute */
inode_put(&fix_inode);
bmodified(bh);
@@ -1588,7 +1594,11 @@ static int init(struct gfs2_sbd *sbp)
sbp->md.riinode = gfs_inode_read(sbp, inum.no_addr);
/* get gfs1 jindex inode - gfs1's journal index inode ptr became master */
gfs2_inum_in(&inum, (char *)&raw_gfs1_ondisk_sb.sb_jindex_di);
- sbp->md.jiinode = inode_read(sbp, inum.no_addr);
+ sbp->md.jiinode = lgfs2_inode_read(sbp, inum.no_addr);
+ if (sbp->md.jiinode == NULL) {
+ log_crit(_("Could not read journal index: %s
"), strerror(errno));
+ exit(-1);
+ }
/* read in the journal index data */
read_gfs1_jiindex(sbp);
/* read in the resource group index data: */
@@ -2056,7 +2066,11 @@ static void copy_quotas(struct gfs2_sbd *sdp)
}

gfs2_inum_in(&inum, (char *)&raw_gfs1_ondisk_sb.sb_quota_di);
- oq_ip = inode_read(sdp, inum.no_addr);
+ oq_ip = lgfs2_inode_read(sdp, inum.no_addr);
+ if (oq_ip == NULL) {
+ fprintf(stderr, _("Couldn't lookup old quota file: %s
"), strerror(errno));
+ exit(1);
+ }

nq_ip->i_di.di_height = oq_ip->i_di.di_height;
nq_ip->i_di.di_size = oq_ip->i_di.di_size;
diff --git a/gfs2/edit/extended.c b/gfs2/edit/extended.c
index 566fb5b..e2567a5 100644
--- a/gfs2/edit/extended.c
+++ b/gfs2/edit/extended.c
@@ -654,7 +654,9 @@ int display_extended(void)
/* Display any indirect pointers that we have. */
if (block_is_rindex()) {
tmp_bh = bread(&sbd, block);
- tmp_inode = inode_get(&sbd, tmp_bh);
+ tmp_inode = lgfs2_inode_get(&sbd, tmp_bh);
+ if (tmp_inode == NULL)
+ return -1;
parse_rindex(tmp_inode, TRUE);
inode_put(&tmp_inode);
brelse(tmp_bh);
@@ -669,35 +671,45 @@ int display_extended(void)
tmp_bh = bread(&sbd, sbd1->sb_rindex_di.no_addr);
else
tmp_bh = bread(&sbd, masterblock("rindex"));
- tmp_inode = inode_get(&sbd, tmp_bh);
+ tmp_inode = lgfs2_inode_get(&sbd, tmp_bh);
+ if (tmp_inode == NULL)
+ return -1;
parse_rindex(tmp_inode, FALSE);
inode_put(&tmp_inode);
brelse(tmp_bh);
}
else if (block_is_jindex()) {
tmp_bh = bread(&sbd, block);
- tmp_inode = inode_get(&sbd, tmp_bh);
+ tmp_inode = lgfs2_inode_get(&sbd, tmp_bh);
+ if (tmp_inode == NULL)
+ return -1;
print_jindex(tmp_inode);
inode_put(&tmp_inode);
brelse(tmp_bh);
}
else if (block_is_inum_file()) {
tmp_bh = bread(&sbd, block);
- tmp_inode = inode_get(&sbd, tmp_bh);
+ tmp_inode = lgfs2_inode_get(&sbd, tmp_bh);
+ if (tmp_inode == NULL)
+ return -1;
print_inum(tmp_inode);
inode_put(&tmp_inode);
brelse(tmp_bh);
}
else if (block_is_statfs_file()) {
tmp_bh = bread(&sbd, block);
- tmp_inode = inode_get(&sbd, tmp_bh);
+ tmp_inode = lgfs2_inode_get(&sbd, tmp_bh);
+ if (tmp_inode == NULL)
+ return -1;
print_statfs(tmp_inode);
inode_put(&tmp_inode);
brelse(tmp_bh);
}
else if (block_is_quota_file()) {
tmp_bh = bread(&sbd, block);
- tmp_inode = inode_get(&sbd, tmp_bh);
+ tmp_inode = lgfs2_inode_get(&sbd, tmp_bh);
+ if (tmp_inode == NULL)
+ return -1;
print_quota(tmp_inode);
inode_put(&tmp_inode);
brelse(tmp_bh);
diff --git a/gfs2/edit/hexedit.c b/gfs2/edit/hexedit.c
index 2ff1125..79082b8 100644
--- a/gfs2/edit/hexedit.c
+++ b/gfs2/edit/hexedit.c
@@ -1063,7 +1063,9 @@ static uint64_t get_rg_addr(int rgnum)
gblock = sbd1->sb_rindex_di.no_addr;
else
gblock = masterblock("rindex");
- riinode = inode_read(&sbd, gblock);
+ riinode = lgfs2_inode_read(&sbd, gblock);
+ if (riinode == NULL)
+ return 0;
if (rgnum < riinode->i_di.di_size / sizeof(struct gfs2_rindex))
rgblk = find_rgrp_block(riinode, rgnum);
else
@@ -1205,29 +1207,6 @@ int block_is_per_node(void)
}

/* ------------------------------------------------------------------------ */
-/* block_is_in_per_node */
-/* ------------------------------------------------------------------------ */
-int block_is_in_per_node(void)
-{
- int d;
- struct gfs2_inode *per_node_di;
-
- if (sbd.gfs1)
- return FALSE;
-
- per_node_di = inode_read(&sbd, masterblock("per_node"));
-
- do_dinode_extended(&per_node_di->i_di, per_node_di->i_bh);
- inode_put(&per_node_di);
-
- for (d = 0; d < indirect->ii[0].dirents; d++) {
- if (block == indirect->ii[0].dirent[d].block)
- return TRUE;
- }
- return FALSE;
-}
-
-/* ------------------------------------------------------------------------ */
/* block_has_extended_info */
/* ------------------------------------------------------------------------ */
static int block_has_extended_info(void)
@@ -1301,15 +1280,19 @@ static void read_superblock(int fd)
sizeof(uint64_t);
sbd.sd_diptrs = (sbd.bsize - sizeof(struct gfs_dinode)) /
sizeof(uint64_t);
- sbd.md.riinode = inode_read(&sbd, sbd1->sb_rindex_di.no_addr);
+ sbd.md.riinode = lgfs2_inode_read(&sbd, sbd1->sb_rindex_di.no_addr);
} else {
sbd.sd_inptrs = (sbd.bsize - sizeof(struct gfs2_meta_header)) /
sizeof(uint64_t);
sbd.sd_diptrs = (sbd.bsize - sizeof(struct gfs2_dinode)) /
sizeof(uint64_t);
- sbd.master_dir = inode_read(&sbd,
+ sbd.master_dir = lgfs2_inode_read(&sbd,
sbd.sd_sb.sb_master_dir.no_addr);
- gfs2_lookupi(sbd.master_dir, "rindex", 6, &sbd.md.riinode);
+ if (sbd.master_dir == NULL) {
+ sbd.md.riinode = NULL;
+ } else {
+ gfs2_lookupi(sbd.master_dir, "rindex", 6, &sbd.md.riinode);
+ }
}
sbd.fssize = sbd.device.length;
if (sbd.md.riinode) /* If we found the rindex */
@@ -1521,7 +1504,9 @@ static uint64_t find_journal_block(const char *journal, uint64_t *j_size)
struct gfs2_inode *jiinode;
struct gfs_jindex ji;

- jiinode = inode_get(&sbd, jindex_bh);
+ jiinode = lgfs2_inode_get(&sbd, jindex_bh);
+ if (jiinode == NULL)
+ return 0;
amtread = gfs2_readi(jiinode, (void *)&jbuf,
journal_num * sizeof(struct gfs_jindex),
sizeof(struct gfs_jindex));
@@ -2682,7 +2667,11 @@ static void dump_journal(const char *journal)
return;
if (!sbd.gfs1) {
j_bh = bread(&sbd, jblock);
- j_inode = inode_get(&sbd, j_bh);
+ j_inode = lgfs2_inode_get(&sbd, j_bh);
+ if (j_inode == NULL) {
+ fprintf(stderr, "Out of memory
");
+ exit(-1);
+ }
jbuf = malloc(sbd.bsize);
if (jbuf == NULL) {
fprintf(stderr, "Out of memory
");
diff --git a/gfs2/edit/hexedit.h b/gfs2/edit/hexedit.h
index dd76810..706909c 100644
--- a/gfs2/edit/hexedit.h
+++ b/gfs2/edit/hexedit.h
@@ -217,7 +217,6 @@ extern int block_is_inum_file(void);
extern int block_is_statfs_file(void);
extern int block_is_quota_file(void);
extern int block_is_per_node(void);
-extern int block_is_in_per_node(void);
extern int display_block_type(int from_restore);
extern void gfs_jindex_in(struct gfs_jindex *jindex, char *buf);
extern void gfs_log_header_in(struct gfs_log_header *head,
diff --git a/gfs2/edit/savemeta.c b/gfs2/edit/savemeta.c
index 77cd7fa..77165a7 100644
--- a/gfs2/edit/savemeta.c
+++ b/gfs2/edit/savemeta.c
@@ -60,6 +60,30 @@ static int block_is_a_journal(void)
return FALSE;
}

+static int block_is_in_per_node(void)
+{
+ int d;
+ struct gfs2_inode *per_node_di;
+
+ if (sbd.gfs1)
+ return FALSE;
+
+ per_node_di = lgfs2_inode_read(&sbd, masterblock("per_node"));
+ if (per_node_di == NULL) {
+ fprintf(stderr, "Failed to read per_node: %s
", strerror(errno));
+ exit(1);
+ }
+
+ do_dinode_extended(&per_node_di->i_di, per_node_di->i_bh);
+ inode_put(&per_node_di);
+
+ for (d = 0; d < indirect->ii[0].dirents; d++) {
+ if (block == indirect->ii[0].dirent[d].block)
+ return TRUE;
+ }
+ return FALSE;
+}
+
static int block_is_systemfile(void)
{
return block_is_jindex() || block_is_inum_file() ||
@@ -122,10 +146,15 @@ static int get_gfs_struct_info(struct gfs2_buffer_head *lbh, int *block_type,
*gstruct_len = sbd.bsize;
break;
case GFS2_METATYPE_DI: /* 4 (disk inode) */
- if (sbd.gfs1)
+ if (sbd.gfs1) {
inode = gfs_inode_get(&sbd, lbh);
- else
- inode = inode_get(&sbd, lbh);
+ } else {
+ inode = lgfs2_inode_get(&sbd, lbh);
+ if (inode == NULL) {
+ fprintf(stderr, "Out of memory
");
+ exit(-1);
+ }
+ }
if (S_ISDIR(inode->i_di.di_mode) ||
(sbd.gfs1 && inode->i_di.__pad1 == GFS_FILE_DIR))
*gstruct_len = sbd.bsize;
@@ -461,8 +490,13 @@ static void save_inode_data(struct metafd *mfd)
metabh = bread(&sbd, block);
if (sbd.gfs1)
inode = gfs_inode_get(&sbd, metabh);
- else
- inode = inode_get(&sbd, metabh);
+ else {
+ inode = lgfs2_inode_get(&sbd, metabh);
+ if (inode == NULL) {
+ fprintf(stderr, "Failed to read inode: %s
", strerror(errno));
+ exit(-1);
+ }
+ }
height = inode->i_di.di_height;
/* If this is a user inode, we don't follow to the file height.
We stop one level less. That way we save off the indirect
@@ -678,11 +712,19 @@ void savemeta(char *out_fn, int saveoption, int gziplevel)
printf("There are %llu blocks of %u bytes in the destination "
"device.
", (unsigned long long)sbd.fssize, sbd.bsize);
if (sbd.gfs1) {
- sbd.md.riinode = inode_read(&sbd, sbd1->sb_rindex_di.no_addr);
+ sbd.md.riinode = lgfs2_inode_read(&sbd, sbd1->sb_rindex_di.no_addr);
+ if (sbd.md.riinode == NULL) {
+ fprintf(stderr, "Unable to read rindex: %s.
", strerror(errno));
+ exit(-1);
+ }
jindex_block = sbd1->sb_jindex_di.no_addr;
} else {
- sbd.master_dir = inode_read(&sbd,
+ sbd.master_dir = lgfs2_inode_read(&sbd,
sbd.sd_sb.sb_master_dir.no_addr);
+ if (sbd.master_dir == NULL) {
+ fprintf(stderr, "Unable to read master: %s.
", strerror(errno));
+ exit(-1);
+ }

gfs2_lookupi(sbd.master_dir, "rindex", 6, &sbd.md.riinode);
jindex_block = masterblock("jindex");
diff --git a/gfs2/fsck/fs_recovery.c b/gfs2/fsck/fs_recovery.c
index 1d9f632..6c92d0e 100644
--- a/gfs2/fsck/fs_recovery.c
+++ b/gfs2/fsck/fs_recovery.c
@@ -667,7 +667,9 @@ int ji_update(struct gfs2_sbd *sdp)
return -1;
}
gfs_jindex_in(&ji, buf);
- sdp->md.journal[i] = inode_read(sdp, ji.ji_addr);
+ sdp->md.journal[i] = lgfs2_inode_read(sdp, ji.ji_addr);
+ if (sdp->md.journal[i] == NULL)
+ return -1;
} else {
/* FIXME check snprintf return code */
snprintf(journal_name, JOURNAL_NAME_SIZE,
diff --git a/gfs2/fsck/initialize.c b/gfs2/fsck/initialize.c
index e56161e..a1047f3 100644
--- a/gfs2/fsck/initialize.c
+++ b/gfs2/fsck/initialize.c
@@ -366,7 +366,11 @@ static int rebuild_master(struct gfs2_sbd *sdp)
inum.no_formal_ino = sdp->md.next_inum++;
inum.no_addr = sdp->sd_sb.sb_master_dir.no_addr;
bh = init_dinode(sdp, &inum, S_IFDIR | 0755, GFS2_DIF_SYSTEM, &inum);
- sdp->master_dir = inode_get(sdp, bh);
+ sdp->master_dir = lgfs2_inode_get(sdp, bh);
+ if (sdp->master_dir == NULL) {
+ log_crit(_("Error reading master: %s
"), strerror(errno));
+ return -1;
+ }
sdp->master_dir->bh_owned = 1;

if (fix_md.jiinode) {
@@ -610,7 +614,9 @@ static int init_system_inodes(struct gfs2_sbd *sdp)
log_info( _("Initializing special inodes...
"));

/* Get root dinode */
- sdp->md.rooti = inode_read(sdp, sdp->sd_sb.sb_root_dir.no_addr);
+ sdp->md.rooti = lgfs2_inode_read(sdp, sdp->sd_sb.sb_root_dir.no_addr);
+ if (sdp->md.rooti == NULL)
+ return -1;

err = fetch_rgrps(sdp);
if (err)
@@ -655,9 +661,13 @@ static int init_system_inodes(struct gfs2_sbd *sdp)
sdp->md.next_inum = be64_to_cpu(inumbuf);
}

- if (sdp->gfs1)
- sdp->md.statfs = inode_read(sdp, sbd1->sb_license_di.no_addr);
- else
+ if (sdp->gfs1) {
+ sdp->md.statfs = lgfs2_inode_read(sdp, sbd1->sb_license_di.no_addr);
+ if (sdp->md.statfs == NULL) {
+ log_crit(_("Error reading statfs inode: %s
"), strerror(errno));
+ goto fail;
+ }
+ } else
gfs2_lookupi(sdp->master_dir, "statfs", 6, &sdp->md.statfs);
if (!sdp->gfs1 && !sdp->md.statfs) {
if (!query( _("The gfs2 system statfs inode is missing. "
@@ -697,9 +707,13 @@ static int init_system_inodes(struct gfs2_sbd *sdp)
}
}

- if (sdp->gfs1)
- sdp->md.qinode = inode_read(sdp, sbd1->sb_quota_di.no_addr);
- else
+ if (sdp->gfs1) {
+ sdp->md.qinode = lgfs2_inode_read(sdp, sbd1->sb_quota_di.no_addr);
+ if (sdp->md.qinode == NULL) {
+ log_crit(_("Error reading quota inode: %s
"), strerror(errno));
+ goto fail;
+ }
+ } else
gfs2_lookupi(sdp->master_dir, "quota", 5, &sdp->md.qinode);
if (!sdp->gfs1 && !sdp->md.qinode) {
if (!query( _("The gfs2 system quota inode is missing. "
@@ -839,7 +853,11 @@ static void peruse_system_dinode(struct gfs2_sbd *sdp, struct gfs2_dinode *di,
sdp->sd_sb.sb_master_dir.no_addr = di->di_num.no_addr;
return;
}
- ip = inode_read(sdp, di->di_num.no_addr);
+ ip = lgfs2_inode_read(sdp, di->di_num.no_addr);
+ if (ip == NULL) {
+ log_crit(_("Error reading inode: %s
"), strerror(errno));
+ return;
+ }
if ((!sdp->gfs1 && di->di_num.no_formal_ino == 3) ||
(sdp->gfs1 && (di->di_flags & GFS2_DIF_JDATA) &&
(di->di_size % sizeof(struct gfs_jindex) == 0))) {
@@ -962,7 +980,11 @@ static void peruse_user_dinode(struct gfs2_sbd *sdp, struct gfs2_dinode *di,
log_warn(_("Root directory copied from the journal.
"));
return;
}
- ip = inode_read(sdp, di->di_num.no_addr);
+ ip = lgfs2_inode_read(sdp, di->di_num.no_addr);
+ if (ip == NULL) {
+ log_crit(_("Error reading inode: %s
"), strerror(errno));
+ return;
+ }
while (ip) {
gfs2_lookupi(ip, "..", 2, &parent_ip);
if (parent_ip && parent_ip->i_di.di_num.no_addr ==
@@ -1147,7 +1169,7 @@ static int sb_repair(struct gfs2_sbd *sdp)
log_err(_("Found a possible root at: 0x%llx
"),
(unsigned long long)possible_root);
sdp->sd_sb.sb_root_dir.no_addr = possible_root;
- sdp->md.rooti = inode_read(sdp, possible_root);
+ sdp->md.rooti = lgfs2_inode_read(sdp, possible_root);
if (!sdp->md.rooti ||
sdp->md.rooti->i_di.di_header.mh_magic != GFS2_MAGIC) {
struct gfs2_buffer_head *bh;
@@ -1174,14 +1196,22 @@ static int sb_repair(struct gfs2_sbd *sdp)
if (query(_("Okay to fix the GFS2 superblock? (y/n)"))) {
log_info(_("Found system master directory at: 0x%llx
"),
sdp->sd_sb.sb_master_dir.no_addr);
- sdp->master_dir = inode_read(sdp,
+ sdp->master_dir = lgfs2_inode_read(sdp,
sdp->sd_sb.sb_master_dir.no_addr);
+ if (sdp->master_dir == NULL) {
+ log_crit(_("Error reading master inode: %s
"), strerror(errno));
+ return -1;
+ }
sdp->master_dir->i_di.di_num.no_addr =
sdp->sd_sb.sb_master_dir.no_addr;
log_info(_("Found the root directory at: 0x%llx
"),
sdp->sd_sb.sb_root_dir.no_addr);
- sdp->md.rooti = inode_read(sdp,
+ sdp->md.rooti = lgfs2_inode_read(sdp,
sdp->sd_sb.sb_root_dir.no_addr);
+ if (sdp->md.rooti == NULL) {
+ log_crit(_("Error reading root inode: %s
"), strerror(errno));
+ return -1;
+ }
get_random_bytes(uuid, sizeof(uuid));
build_sb(sdp, uuid);
inode_put(&sdp->md.rooti);
@@ -1345,7 +1375,7 @@ static int init_rindex(struct gfs2_sbd *sdp)
int err;

if (sdp->gfs1)
- sdp->md.riinode = inode_read(sdp, sbd1->sb_rindex_di.no_addr);
+ sdp->md.riinode = lgfs2_inode_read(sdp, sbd1->sb_rindex_di.no_addr);
else
gfs2_lookupi(sdp->master_dir, "rindex", 6, &sdp->md.riinode);

@@ -1376,7 +1406,7 @@ static int init_jindex(struct gfs2_sbd *sdp)
/* rgrepair requires the journals be read in in order to distinguish
"real" rgrps from rgrps that are just copies left in journals. */
if (sdp->gfs1)
- sdp->md.jiinode = inode_read(sdp, sbd1->sb_jindex_di.no_addr);
+ sdp->md.jiinode = lgfs2_inode_read(sdp, sbd1->sb_jindex_di.no_addr);
else
gfs2_lookupi(sdp->master_dir, "jindex", 6, &sdp->md.jiinode);

@@ -1488,7 +1518,7 @@ int initialize(struct gfs2_sbd *sdp, int force_check, int preen,
if (sdp->gfs1)
sdp->master_dir = NULL;
else
- sdp->master_dir = inode_read(sdp,
+ sdp->master_dir = lgfs2_inode_read(sdp,
sdp->sd_sb.sb_master_dir.no_addr);
if (!sdp->gfs1 &&
(sdp->master_dir->i_di.di_header.mh_magic != GFS2_MAGIC ||
@@ -1496,8 +1526,12 @@ int initialize(struct gfs2_sbd *sdp, int force_check, int preen,
!sdp->master_dir->i_di.di_size)) {
inode_put(&sdp->master_dir);
rebuild_master(sdp);
- sdp->master_dir = inode_read(sdp,
+ sdp->master_dir = lgfs2_inode_read(sdp,
sdp->sd_sb.sb_master_dir.no_addr);
+ if (sdp->master_dir == NULL) {
+ log_crit(_("Error reading master directory: %s
"), strerror(errno));
+ return FSCK_ERROR;
+ }
}

/* Look up the "per_node" inode. If there are journals missing, we
diff --git a/gfs2/fsck/metawalk.c b/gfs2/fsck/metawalk.c
index acdd10f..aa4f0b5 100644
--- a/gfs2/fsck/metawalk.c
+++ b/gfs2/fsck/metawalk.c
@@ -227,7 +227,7 @@ struct gfs2_inode *fsck_load_inode(struct gfs2_sbd *sdp, uint64_t block)
return ip;
if (sdp->gfs1)
return gfs_inode_read(sdp, block);
- return inode_read(sdp, block);
+ return lgfs2_inode_read(sdp, block);
}

/* fsck_inode_get - same as inode_get() in libgfs2 but system inodes
@@ -243,7 +243,7 @@ struct gfs2_inode *fsck_inode_get(struct gfs2_sbd *sdp,

if (sdp->gfs1)
return gfs_inode_get(sdp, bh);
- return inode_get(sdp, bh);
+ return lgfs2_inode_get(sdp, bh);
}

/* fsck_inode_put - same as inode_put() in libgfs2 but system inodes
diff --git a/gfs2/libgfs2/fs_ops.c b/gfs2/libgfs2/fs_ops.c
index 9409332..ec150e8 100644
--- a/gfs2/libgfs2/fs_ops.c
+++ b/gfs2/libgfs2/fs_ops.c
@@ -34,34 +34,32 @@ static int inode_is_stuffed(struct gfs2_inode *ip)
return !ip->i_di.di_height;
}

-struct gfs2_inode *inode_get(struct gfs2_sbd *sdp, struct gfs2_buffer_head *bh)
+struct gfs2_inode *lgfs2_inode_get(struct gfs2_sbd *sdp, struct gfs2_buffer_head *bh)
{
struct gfs2_inode *ip;

ip = calloc(1, sizeof(struct gfs2_inode));
if (ip == NULL) {
- fprintf(stderr, "Out of memory in %s
", __FUNCTION__);
- exit(-1);
+ return NULL;
}
gfs2_dinode_in(&ip->i_di, bh);
ip->i_bh = bh;
ip->i_sbd = sdp;
- ip->bh_owned = 0; /* caller did the bread so we don't own the bh */
return ip;
}

-struct gfs2_inode *inode_read(struct gfs2_sbd *sdp, uint64_t di_addr)
+struct gfs2_inode *lgfs2_inode_read(struct gfs2_sbd *sdp, uint64_t di_addr)
{
struct gfs2_inode *ip;
-
- ip = calloc(1, sizeof(struct gfs2_inode));
+ struct gfs2_buffer_head *bh = bread(sdp, di_addr);
+ if (bh == NULL) {
+ return NULL;
+ }
+ ip = lgfs2_inode_get(sdp, bh);
if (ip == NULL) {
- fprintf(stderr, "Out of memory in %s
", __FUNCTION__);
- exit(-1);
+ brelse(bh);
+ return NULL;
}
- ip->i_bh = bread(sdp, di_addr);
- gfs2_dinode_in(&ip->i_di, ip->i_bh);
- ip->i_sbd = sdp;
ip->bh_owned = 1; /* We did the bread so we own the bh */
return ip;
}
@@ -1405,7 +1403,9 @@ static struct gfs2_inode *__createi(struct gfs2_inode *dip,

bh = __init_dinode(sdp, &inum, mode, flags, &dip->i_di.di_num,
if_gfs1);
- ip = inode_get(sdp, bh);
+ ip = lgfs2_inode_get(sdp, bh);
+ if (ip == NULL)
+ return NULL;
bmodified(bh);
}
ip->bh_owned = 1;
@@ -1764,7 +1764,7 @@ int gfs2_lookupi(struct gfs2_inode *dip, const char *filename, int len,
return 0;
}
else
- *ipp = inode_read(sdp, inum.no_addr);
+ *ipp = lgfs2_inode_read(sdp, inum.no_addr);

return error;
}
@@ -1808,7 +1808,11 @@ int gfs2_freedi(struct gfs2_sbd *sdp, uint64_t diblock)
osi_list_init(&metalist[h]);

bh = bread(sdp, diblock);
- ip = inode_get(sdp, bh);
+ if (bh == NULL)
+ return -1;
+ ip = lgfs2_inode_get(sdp, bh);
+ if (ip == NULL)
+ return -1;
height = ip->i_di.di_height;
osi_list_add(&bh->b_altlist, &metalist[0]);

diff --git a/gfs2/libgfs2/libgfs2.h b/gfs2/libgfs2/libgfs2.h
index 09f0b1d..9b128ff 100644
--- a/gfs2/libgfs2/libgfs2.h
+++ b/gfs2/libgfs2/libgfs2.h
@@ -425,9 +425,9 @@ extern struct metapath *find_metapath(struct gfs2_inode *ip, uint64_t block);
extern void lookup_block(struct gfs2_inode *ip, struct gfs2_buffer_head *bh,
unsigned int height, struct metapath *mp,
int create, int *new, uint64_t *block);
-extern struct gfs2_inode *inode_get(struct gfs2_sbd *sdp,
+extern struct gfs2_inode *lgfs2_inode_get(struct gfs2_sbd *sdp,
struct gfs2_buffer_head *bh);
-extern struct gfs2_inode *inode_read(struct gfs2_sbd *sdp, uint64_t di_addr);
+extern struct gfs2_inode *lgfs2_inode_read(struct gfs2_sbd *sdp, uint64_t di_addr);
extern struct gfs2_inode *is_system_inode(struct gfs2_sbd *sdp,
uint64_t block);
extern void inode_put(struct gfs2_inode **ip);
diff --git a/gfs2/libgfs2/structures.c b/gfs2/libgfs2/structures.c
index 0c22b01..645c45a 100644
--- a/gfs2/libgfs2/structures.c
+++ b/gfs2/libgfs2/structures.c
@@ -26,7 +26,9 @@ int build_master(struct gfs2_sbd *sdp)

bh = init_dinode(sdp, &inum, S_IFDIR | 0755, GFS2_DIF_SYSTEM, &inum);

- sdp->master_dir = inode_get(sdp, bh);
+ sdp->master_dir = lgfs2_inode_get(sdp, bh);
+ if (sdp->master_dir == NULL)
+ return -1;

if (sdp->debug) {
printf("
Master dir:
");
@@ -429,7 +431,9 @@ int build_root(struct gfs2_sbd *sdp)
inum.no_addr = bn;

bh = init_dinode(sdp, &inum, S_IFDIR | 0755, 0, &inum);
- sdp->md.rooti = inode_get(sdp, bh);
+ sdp->md.rooti = lgfs2_inode_get(sdp, bh);
+ if (sdp->md.rooti == NULL)
+ return -1;

if (sdp->debug) {
printf("
Root directory:
");
diff --git a/gfs2/mkfs/main_grow.c b/gfs2/mkfs/main_grow.c
index 3fe08a1..7bcfce2 100644
--- a/gfs2/mkfs/main_grow.c
+++ b/gfs2/mkfs/main_grow.c
@@ -376,8 +376,11 @@ main_grow(int argc, char *argv[])
die( _("GFS2 rindex not found. Please run gfs2_fsck.
"));
}
/* Get master dinode */
- sdp->master_dir =
- inode_read(sdp, sdp->sd_sb.sb_master_dir.no_addr);
+ sdp->master_dir = lgfs2_inode_read(sdp, sdp->sd_sb.sb_master_dir.no_addr);
+ if (sdp->master_dir == NULL) {
+ perror("Could not read master");
+ exit(EXIT_FAILURE);
+ }
gfs2_lookupi(sdp->master_dir, "rindex", 6, &sdp->md.riinode);
/* Fetch the rindex from disk. We aren't using gfs2 here, */
/* which means that the bitmaps will most likely be cached */
--
1.7.11.4


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