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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 10:57:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 10:57:46 -0800
commit0e63a5c6ba9679a903f95b10827f74fe183017fa (patch)
tree4d1846ddca080645a642b276935d1893d2127204 /fs/dcache.c
parentae42c3173ba5cbe12fab0dad330e997c4ff9f68a (diff)
parent3c2e0a489da6a7c48ad67a246c7a287fcb4a4607 (diff)
Merge tag 'docs-5.12' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet: "It has been a relatively quiet cycle in docsland. - As promised, the minimum Sphinx version to build the docs is now 1.7, and we have dropped support for Python 2 entirely. That allowed the removal of a bunch of compatibility code. - A set of treewide warning fixups from Mauro that I applied after it became clear nobody else was going to deal with them. - The automarkup mechanism can now create cross-references from relative paths to RST files. - More translations, typo fixes, and warning fixes" * tag 'docs-5.12' of git://git.lwn.net/linux: (75 commits) docs: kernel-hacking: be more civil docs: Remove the Microsoft rhetoric Documentation/admin-guide: kernel-parameters: Update nohlt section doc/admin-guide: fix spelling mistake: "perfomance" -> "performance" docs: Document cross-referencing using relative path docs: Enable usage of relative paths to docs on automarkup docs: thermal: fix spelling mistakes Documentation: admin-guide: Update kvm/xen config option docs: Make syscalls' helpers naming consistent coding-style.rst: Avoid comma statements Documentation: /proc/loadavg: add 3 more field descriptions Documentation/submitting-patches: Add blurb about backtraces in commit messages Docs: drop Python 2 support Move our minimum Sphinx version to 1.7 Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams scripts/kernel-doc: add internal hyperlink to DOC: sections Update Documentation/admin-guide/sysctl/fs.rst docs: Update DTB format references docs: zh_CN: add iio index.rst translation docs/zh_CN: add iio ep93xx_adc.rst translation ...
Diffstat (limited to 'fs/dcache.c')
-rw-r--r--fs/dcache.c63
1 files changed, 32 insertions, 31 deletions
diff --git a/fs/dcache.c b/fs/dcache.c
index 97e81a844a96..c17fd15b01d4 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -456,23 +456,6 @@ static void d_lru_shrink_move(struct list_lru_one *lru, struct dentry *dentry,
list_lru_isolate_move(lru, &dentry->d_lru, list);
}
-/**
- * d_drop - drop a dentry
- * @dentry: dentry to drop
- *
- * d_drop() unhashes the entry from the parent dentry hashes, so that it won't
- * be found through a VFS lookup any more. Note that this is different from
- * deleting the dentry - d_delete will try to mark the dentry negative if
- * possible, giving a successful _negative_ lookup, while d_drop will
- * just make the cache lookup fail.
- *
- * d_drop() is used mainly for stuff that wants to invalidate a dentry for some
- * reason (NFS timeouts or autofs deletes).
- *
- * __d_drop requires dentry->d_lock
- * ___d_drop doesn't mark dentry as "unhashed"
- * (dentry->d_hash.pprev will be LIST_POISON2, not NULL).
- */
static void ___d_drop(struct dentry *dentry)
{
struct hlist_bl_head *b;
@@ -501,6 +484,24 @@ void __d_drop(struct dentry *dentry)
}
EXPORT_SYMBOL(__d_drop);
+/**
+ * d_drop - drop a dentry
+ * @dentry: dentry to drop
+ *
+ * d_drop() unhashes the entry from the parent dentry hashes, so that it won't
+ * be found through a VFS lookup any more. Note that this is different from
+ * deleting the dentry - d_delete will try to mark the dentry negative if
+ * possible, giving a successful _negative_ lookup, while d_drop will
+ * just make the cache lookup fail.
+ *
+ * d_drop() is used mainly for stuff that wants to invalidate a dentry for some
+ * reason (NFS timeouts or autofs deletes).
+ *
+ * __d_drop requires dentry->d_lock
+ *
+ * ___d_drop doesn't mark dentry as "unhashed"
+ * (dentry->d_hash.pprev will be LIST_POISON2, not NULL).
+ */
void d_drop(struct dentry *dentry)
{
spin_lock(&dentry->d_lock);
@@ -996,20 +997,6 @@ struct dentry *d_find_any_alias(struct inode *inode)
}
EXPORT_SYMBOL(d_find_any_alias);
-/**
- * d_find_alias - grab a hashed alias of inode
- * @inode: inode in question
- *
- * If inode has a hashed alias, or is a directory and has any alias,
- * acquire the reference to alias and return it. Otherwise return NULL.
- * Notice that if inode is a directory there can be only one alias and
- * it can be unhashed only if it has no children, or if it is the root
- * of a filesystem, or if the directory was renamed and d_revalidate
- * was the first vfs operation to notice.
- *
- * If the inode has an IS_ROOT, DCACHE_DISCONNECTED alias, then prefer
- * any other hashed alias over that one.
- */
static struct dentry *__d_find_alias(struct inode *inode)
{
struct dentry *alias;
@@ -1029,6 +1016,20 @@ static struct dentry *__d_find_alias(struct inode *inode)
return NULL;
}
+/**
+ * d_find_alias - grab a hashed alias of inode
+ * @inode: inode in question
+ *
+ * If inode has a hashed alias, or is a directory and has any alias,
+ * acquire the reference to alias and return it. Otherwise return NULL.
+ * Notice that if inode is a directory there can be only one alias and
+ * it can be unhashed only if it has no children, or if it is the root
+ * of a filesystem, or if the directory was renamed and d_revalidate
+ * was the first vfs operation to notice.
+ *
+ * If the inode has an IS_ROOT, DCACHE_DISCONNECTED alias, then prefer
+ * any other hashed alias over that one.
+ */
struct dentry *d_find_alias(struct inode *inode)
{
struct dentry *de = NULL;