diff options
| author | Christian Brauner <brauner@kernel.org> | 2024-09-17 11:07:49 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-10-02 07:52:11 +0200 |
| commit | 2b2b1a20db83cf0c3892dac2a6b2a7292c9607d8 (patch) | |
| tree | da7a0897a60f10cf3b22ec354f338fccac859e78 /fs/hugetlbfs | |
| parent | Merge patch series "Fixup NLM and kNFSD file lock callbacks" (diff) | |
| parent | hugetlbfs: use tracepoints in hugetlbfs functions. (diff) | |
| download | linux-2b2b1a20db83cf0c3892dac2a6b2a7292c9607d8.tar.xz linux-2b2b1a20db83cf0c3892dac2a6b2a7292c9607d8.zip | |
Merge patch series "Introduce tracepoint for hugetlbfs"
Hongbo Li <lihongbo22@huawei.com> says:
Add some basic tracepoints for debugging hugetlbfs: {alloc, free,
evict}_inode, setattr and fallocate.
* patches from https://lore.kernel.org/r/20240829064110.67884-1-lihongbo22@huawei.com:
hugetlbfs: use tracepoints in hugetlbfs functions.
hugetlbfs: support tracepoint
Link: https://lore.kernel.org/r/20240829064110.67884-1-lihongbo22@huawei.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/hugetlbfs')
| -rw-r--r-- | fs/hugetlbfs/inode.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 5cf327337e22..2dea122e5b93 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -39,6 +39,9 @@ #include <linux/uaccess.h> #include <linux/sched/mm.h> +#define CREATE_TRACE_POINTS +#include <trace/events/hugetlbfs.h> + static const struct address_space_operations hugetlbfs_aops; static const struct file_operations hugetlbfs_file_operations; static const struct inode_operations hugetlbfs_dir_inode_operations; @@ -687,6 +690,7 @@ static void hugetlbfs_evict_inode(struct inode *inode) { struct resv_map *resv_map; + trace_hugetlbfs_evict_inode(inode); remove_inode_hugepages(inode, 0, LLONG_MAX); /* @@ -814,8 +818,10 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset, if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) return -EOPNOTSUPP; - if (mode & FALLOC_FL_PUNCH_HOLE) - return hugetlbfs_punch_hole(inode, offset, len); + if (mode & FALLOC_FL_PUNCH_HOLE) { + error = hugetlbfs_punch_hole(inode, offset, len); + goto out_nolock; + } /* * Default preallocate case. @@ -919,6 +925,9 @@ static long hugetlbfs_fallocate(struct file *file, int mode, loff_t offset, inode_set_ctime_current(inode); out: inode_unlock(inode); + +out_nolock: + trace_hugetlbfs_fallocate(inode, mode, offset, len, error); return error; } @@ -935,6 +944,8 @@ static int hugetlbfs_setattr(struct mnt_idmap *idmap, if (error) return error; + trace_hugetlbfs_setattr(inode, dentry, attr); + if (ia_valid & ATTR_SIZE) { loff_t oldsize = inode->i_size; loff_t newsize = attr->ia_size; @@ -1033,6 +1044,7 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, break; } lockdep_annotate_inode_mutex_key(inode); + trace_hugetlbfs_alloc_inode(inode, dir, mode); } else { if (resv_map) kref_put(&resv_map->refs, resv_map_release); @@ -1272,6 +1284,7 @@ static struct inode *hugetlbfs_alloc_inode(struct super_block *sb) static void hugetlbfs_free_inode(struct inode *inode) { + trace_hugetlbfs_free_inode(inode); kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode)); } |