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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-09 11:52:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-09 11:52:11 -0800
commit36011ddc78395b59a8a418c37f20bcc18828f1ef (patch)
treeb91a2abc3a49f2cc2945883f5145a059a79b6a18 /fs
parentMerge tag '5.1-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 (diff)
parentgfs2: Fix missed wakeups in find_insert_glock (diff)
downloadlinux-dev-36011ddc78395b59a8a418c37f20bcc18828f1ef.tar.xz
linux-dev-36011ddc78395b59a8a418c37f20bcc18828f1ef.zip
Merge tag 'gfs2-5.1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Bob Peterson: "We've only got three patches ready for this merge window: - Fix a hang related to missed wakeups for glocks from Andreas Gruenbacher - Rework of how gfs2 manages its debugfs files from Greg K-H - An incorrect assert when truncating or deleting files from Tim Smith" * tag 'gfs2-5.1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: gfs2: Fix missed wakeups in find_insert_glock gfs2: Fix an incorrect gfs2_assert() gfs: no need to check return value of debugfs_create functions
Diffstat (limited to 'fs')
-rw-r--r--fs/gfs2/glock.c72
-rw-r--r--fs/gfs2/glock.h4
-rw-r--r--fs/gfs2/incore.h3
-rw-r--r--fs/gfs2/inode.h4
-rw-r--r--fs/gfs2/main.c6
5 files changed, 20 insertions, 69 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index b92740edc416..d32964cd1117 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -107,7 +107,7 @@ static int glock_wake_function(wait_queue_entry_t *wait, unsigned int mode,
static wait_queue_head_t *glock_waitqueue(struct lm_lockname *name)
{
- u32 hash = jhash2((u32 *)name, sizeof(*name) / 4, 0);
+ u32 hash = jhash2((u32 *)name, ht_parms.key_len / 4, 0);
return glock_wait_table + hash_32(hash, GLOCK_WAIT_TABLE_BITS);
}
@@ -2131,71 +2131,29 @@ static const struct file_operations gfs2_sbstats_fops = {
.release = seq_release,
};
-int gfs2_create_debugfs_file(struct gfs2_sbd *sdp)
-{
- struct dentry *dent;
-
- dent = debugfs_create_dir(sdp->sd_table_name, gfs2_root);
- if (IS_ERR_OR_NULL(dent))
- goto fail;
- sdp->debugfs_dir = dent;
-
- dent = debugfs_create_file("glocks",
- S_IFREG | S_IRUGO,
- sdp->debugfs_dir, sdp,
- &gfs2_glocks_fops);
- if (IS_ERR_OR_NULL(dent))
- goto fail;
- sdp->debugfs_dentry_glocks = dent;
-
- dent = debugfs_create_file("glstats",
- S_IFREG | S_IRUGO,
- sdp->debugfs_dir, sdp,
- &gfs2_glstats_fops);
- if (IS_ERR_OR_NULL(dent))
- goto fail;
- sdp->debugfs_dentry_glstats = dent;
-
- dent = debugfs_create_file("sbstats",
- S_IFREG | S_IRUGO,
- sdp->debugfs_dir, sdp,
- &gfs2_sbstats_fops);
- if (IS_ERR_OR_NULL(dent))
- goto fail;
- sdp->debugfs_dentry_sbstats = dent;
+void gfs2_create_debugfs_file(struct gfs2_sbd *sdp)
+{
+ sdp->debugfs_dir = debugfs_create_dir(sdp->sd_table_name, gfs2_root);
- return 0;
-fail:
- gfs2_delete_debugfs_file(sdp);
- return dent ? PTR_ERR(dent) : -ENOMEM;
+ debugfs_create_file("glocks", S_IFREG | S_IRUGO, sdp->debugfs_dir, sdp,
+ &gfs2_glocks_fops);
+
+ debugfs_create_file("glstats", S_IFREG | S_IRUGO, sdp->debugfs_dir, sdp,
+ &gfs2_glstats_fops);
+
+ debugfs_create_file("sbstats", S_IFREG | S_IRUGO, sdp->debugfs_dir, sdp,
+ &gfs2_sbstats_fops);
}
void gfs2_delete_debugfs_file(struct gfs2_sbd *sdp)
{
- if (sdp->debugfs_dir) {
- if (sdp->debugfs_dentry_glocks) {
- debugfs_remove(sdp->debugfs_dentry_glocks);
- sdp->debugfs_dentry_glocks = NULL;
- }
- if (sdp->debugfs_dentry_glstats) {
- debugfs_remove(sdp->debugfs_dentry_glstats);
- sdp->debugfs_dentry_glstats = NULL;
- }
- if (sdp->debugfs_dentry_sbstats) {
- debugfs_remove(sdp->debugfs_dentry_sbstats);
- sdp->debugfs_dentry_sbstats = NULL;
- }
- debugfs_remove(sdp->debugfs_dir);
- sdp->debugfs_dir = NULL;
- }
+ debugfs_remove_recursive(sdp->debugfs_dir);
+ sdp->debugfs_dir = NULL;
}
-int gfs2_register_debugfs(void)
+void gfs2_register_debugfs(void)
{
gfs2_root = debugfs_create_dir("gfs2", NULL);
- if (IS_ERR(gfs2_root))
- return PTR_ERR(gfs2_root);
- return gfs2_root ? 0 : -ENOMEM;
}
void gfs2_unregister_debugfs(void)
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 8949bf28b249..936b3295839c 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -243,9 +243,9 @@ extern void gfs2_glock_free(struct gfs2_glock *gl);
extern int __init gfs2_glock_init(void);
extern void gfs2_glock_exit(void);
-extern int gfs2_create_debugfs_file(struct gfs2_sbd *sdp);
+extern void gfs2_create_debugfs_file(struct gfs2_sbd *sdp);
extern void gfs2_delete_debugfs_file(struct gfs2_sbd *sdp);
-extern int gfs2_register_debugfs(void);
+extern void gfs2_register_debugfs(void);
extern void gfs2_unregister_debugfs(void);
extern const struct lm_lockops gfs2_dlm_ops;
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index e10e0b0a7cd5..cdf07b408f54 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -853,9 +853,6 @@ struct gfs2_sbd {
unsigned long sd_last_warning;
struct dentry *debugfs_dir; /* debugfs directory */
- struct dentry *debugfs_dentry_glocks;
- struct dentry *debugfs_dentry_glstats;
- struct dentry *debugfs_dentry_sbstats;
};
static inline void gfs2_glstats_inc(struct gfs2_glock *gl, int which)
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 793808263c6d..18d4af7417fa 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -59,8 +59,8 @@ static inline u64 gfs2_get_inode_blocks(const struct inode *inode)
static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change)
{
- gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks > -change));
- change *= (GFS2_SB(inode)->sd_sb.sb_bsize/GFS2_BASIC_BLOCK);
+ change <<= inode->i_blkbits - GFS2_BASIC_BLOCK_SHIFT;
+ gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks >= -change));
inode->i_blocks += change;
}
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index c7603063f861..136484ef35d3 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -178,16 +178,12 @@ static int __init init_gfs2_fs(void)
if (!gfs2_page_pool)
goto fail_mempool;
- error = gfs2_register_debugfs();
- if (error)
- goto fail_debugfs;
+ gfs2_register_debugfs();
pr_info("GFS2 installed\n");
return 0;
-fail_debugfs:
- mempool_destroy(gfs2_page_pool);
fail_mempool:
destroy_workqueue(gfs2_freeze_wq);
fail_wq3: