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Date: Thu, 4 Jul 2024 11:07:04 +0800 Message-ID: <20240704030704.2289667-3-lihongbo22@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240704030704.2289667-1-lihongbo22@huawei.com> References: <20240704030704.2289667-1-lihongbo22@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpeml500022.china.huawei.com (7.185.36.66) X-Rspamd-Server: rspam03 X-Rspam-User: X-Rspamd-Queue-Id: EC011100012 X-Stat-Signature: 4j7b3ew4px8fwmb7c9y18ja5m95ijg7j X-HE-Tag: 1720062212-783933 X-HE-Meta: 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 KGyVFmrj Fgq4UpKrKDcM1/ZjjIr19qeionYdE/CsrwseWL6Xt/f2s608KSimqRs6aA1bF/tCSpAwD1WkaxxEOqqBMW0oZWNT+6NN6CJmt+IAie90gc8Ac8u3vW2+w7costAddU52Nk8cZlG8xtkfUImfwigPtYiJ0ACRXTHAlCrRi3XOSEC/388Roq9qIzVH/zw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Here we use the hugetlbfs tracepoint to track the call stack. And the output in trace is as follows: ``` touch-5250 [002] ..... 123.557640: hugetlbfs_alloc_inode: dev = (0,49), ino = 29897, dir = 24079, mode = 0100644 touch-5250 [002] ..... 123.557650: hugetlbfs_setattr: dev = (0,49), ino = 29897, name = test1, ia_valid = 131184, ia_mode = 036720, ia_uid = 2544251907, ia_gid = 65534, old_size = 0, ia_size = 4064 truncate-5251 [002] ..... 142.939424: hugetlbfs_setattr: dev = (0,49), ino = 29897, name = test1, ia_valid = 8296, ia_mode = 00, ia_uid = 0, ia_gid = 0, old_size = 0, ia_size = 2097152 rm-5273 [002] ..... 412.618383: hugetlbfs_evict_inode: dev = (0,49), ino = 29897, i_mode = 0100644, i_size = 2097152, i_nlink = 0, seals = 1, i_blocks = 0 -0 [002] ..s1. 412.634518: hugetlbfs_free_inode: dev = (0,49), ino = 29897, i_mode = 0100644, i_size = 2097152, i_nlink = 0, seals = 1, i_blocks = 0 ``` Signed-off-by: Hongbo Li --- fs/hugetlbfs/inode.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 412f295acebe..2e826bbcb6ed 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -39,6 +39,9 @@ #include #include +#define CREATE_TRACE_POINTS +#include + 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; @@ -686,6 +689,7 @@ 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); /* @@ -813,8 +817,10 @@ 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. @@ -918,6 +924,9 @@ 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; } @@ -934,6 +943,8 @@ 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; @@ -1032,6 +1043,7 @@ 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); @@ -1274,6 +1286,7 @@ 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)); }