linux-btrfs.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Anand Jain <anand.jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH 3/5] btrfs: reorg functions to drop forward declaration
Date: Fri,  8 Feb 2019 15:02:33 +0800	[thread overview]
Message-ID: <1549609355-11053-4-git-send-email-anand.jain@oracle.com> (raw)
In-Reply-To: <1549609355-11053-1-git-send-email-anand.jain@oracle.com>

In preparation to drop forward declaration of the functions,
prop_compression_validate(), prop_compression_apply() and
prop_compression_extract(). Move prop_handlers[], btrfs_props_init()
prop_compression_validate(), prop_compression_apply() and
prop_compression_extract() appropriately with in the file. No functional
changes.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 fs/btrfs/props.c | 157 ++++++++++++++++++++++++++++---------------------------
 1 file changed, 79 insertions(+), 78 deletions(-)

diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c
index 4525a2a4d1cd..6f52e3d21012 100644
--- a/fs/btrfs/props.c
+++ b/fs/btrfs/props.c
@@ -29,30 +29,6 @@ static int prop_compression_apply(struct inode *inode,
 				  size_t len);
 static const char *prop_compression_extract(struct inode *inode);
 
-static struct prop_handler prop_handlers[] = {
-	{
-		.xattr_name = XATTR_BTRFS_PREFIX "compression",
-		.validate = prop_compression_validate,
-		.apply = prop_compression_apply,
-		.extract = prop_compression_extract,
-		.inheritable = 1
-	},
-};
-
-void __init btrfs_props_init(void)
-{
-	int i;
-
-	hash_init(prop_handlers_ht);
-
-	for (i = 0; i < ARRAY_SIZE(prop_handlers); i++) {
-		struct prop_handler *p = &prop_handlers[i];
-		u64 h = btrfs_name_hash(p->xattr_name, strlen(p->xattr_name));
-
-		hash_add(prop_handlers_ht, &p->node, h);
-	}
-}
-
 static const struct hlist_head *find_prop_handlers_by_hash(const u64 hash)
 {
 	struct hlist_head *h;
@@ -271,6 +247,78 @@ int btrfs_load_inode_props(struct inode *inode, struct btrfs_path *path)
 	return ret;
 }
 
+static int prop_compression_validate(const char *value, size_t len)
+{
+	if (!value)
+		return 0;
+
+	if (!strncmp("lzo", value, len))
+		return 0;
+	else if (!strncmp("zlib", value, len))
+		return 0;
+	else if (!strncmp("zstd", value, len))
+		return 0;
+
+	return -EINVAL;
+}
+
+static int prop_compression_apply(struct inode *inode, const char *value,
+				  size_t len)
+{
+	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+	int type;
+
+	if (len == 0) {
+		BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS;
+		BTRFS_I(inode)->flags &= ~BTRFS_INODE_COMPRESS;
+		BTRFS_I(inode)->prop_compress = BTRFS_COMPRESS_NONE;
+
+		return 0;
+	}
+
+	if (!strncmp("lzo", value, 3)) {
+		type = BTRFS_COMPRESS_LZO;
+		btrfs_set_fs_incompat(fs_info, COMPRESS_LZO);
+	} else if (!strncmp("zlib", value, 4)) {
+		type = BTRFS_COMPRESS_ZLIB;
+	} else if (!strncmp("zstd", value, len)) {
+		type = BTRFS_COMPRESS_ZSTD;
+		btrfs_set_fs_incompat(fs_info, COMPRESS_ZSTD);
+	} else {
+		return -EINVAL;
+	}
+
+	BTRFS_I(inode)->flags &= ~BTRFS_INODE_NOCOMPRESS;
+	BTRFS_I(inode)->flags |= BTRFS_INODE_COMPRESS;
+	BTRFS_I(inode)->prop_compress = type;
+
+	return 0;
+}
+
+static const char *prop_compression_extract(struct inode *inode)
+{
+	switch (BTRFS_I(inode)->prop_compress) {
+	case BTRFS_COMPRESS_ZLIB:
+	case BTRFS_COMPRESS_LZO:
+	case BTRFS_COMPRESS_ZSTD:
+		return btrfs_compress_type2str(BTRFS_I(inode)->prop_compress);
+	default:
+		break;
+	}
+
+	return NULL;
+}
+
+static struct prop_handler prop_handlers[] = {
+	{
+		.xattr_name = XATTR_BTRFS_PREFIX "compression",
+		.validate = prop_compression_validate,
+		.apply = prop_compression_apply,
+		.extract = prop_compression_extract,
+		.inheritable = 1
+	},
+};
+
 static int inherit_props(struct btrfs_trans_handle *trans,
 			 struct inode *inode,
 			 struct inode *parent)
@@ -352,64 +400,17 @@ int btrfs_subvol_inherit_props(struct btrfs_trans_handle *trans,
 	return ret;
 }
 
-static int prop_compression_validate(const char *value, size_t len)
-{
-	if (!strncmp("lzo", value, len))
-		return 0;
-	else if (!strncmp("zlib", value, len))
-		return 0;
-	else if (!strncmp("zstd", value, len))
-		return 0;
-
-	return -EINVAL;
-}
-
-static int prop_compression_apply(struct inode *inode,
-				  const char *value,
-				  size_t len)
+void __init btrfs_props_init(void)
 {
-	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
-	int type;
-
-	if (len == 0) {
-		BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS;
-		BTRFS_I(inode)->flags &= ~BTRFS_INODE_COMPRESS;
-		BTRFS_I(inode)->prop_compress = BTRFS_COMPRESS_NONE;
-
-		return 0;
-	}
-
-	if (!strncmp("lzo", value, 3)) {
-		type = BTRFS_COMPRESS_LZO;
-		btrfs_set_fs_incompat(fs_info, COMPRESS_LZO);
-	} else if (!strncmp("zlib", value, 4)) {
-		type = BTRFS_COMPRESS_ZLIB;
-	} else if (!strncmp("zstd", value, len)) {
-		type = BTRFS_COMPRESS_ZSTD;
-		btrfs_set_fs_incompat(fs_info, COMPRESS_ZSTD);
-	} else {
-		return -EINVAL;
-	}
+	int i;
 
-	BTRFS_I(inode)->flags &= ~BTRFS_INODE_NOCOMPRESS;
-	BTRFS_I(inode)->flags |= BTRFS_INODE_COMPRESS;
-	BTRFS_I(inode)->prop_compress = type;
+	hash_init(prop_handlers_ht);
 
-	return 0;
-}
+	for (i = 0; i < ARRAY_SIZE(prop_handlers); i++) {
+		struct prop_handler *p = &prop_handlers[i];
+		u64 h = btrfs_name_hash(p->xattr_name, strlen(p->xattr_name));
 
-static const char *prop_compression_extract(struct inode *inode)
-{
-	switch (BTRFS_I(inode)->prop_compress) {
-	case BTRFS_COMPRESS_ZLIB:
-	case BTRFS_COMPRESS_LZO:
-	case BTRFS_COMPRESS_ZSTD:
-		return btrfs_compress_type2str(BTRFS_I(inode)->prop_compress);
-	default:
-		break;
+		hash_add(prop_handlers_ht, &p->node, h);
 	}
-
-	return NULL;
 }
 
-
-- 
1.8.3.1


  parent reply	other threads:[~2019-02-08  7:02 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-08  7:02 [PATCH 0/5] Misc props.c cleanups Anand Jain
2019-02-08  7:02 ` [PATCH 1/5] btrfs: fix comment its device list mutex not volume lock Anand Jain
2019-02-08  7:07   ` Nikolay Borisov
2019-02-08  7:16     ` Anand Jain
2019-02-08  7:19       ` Nikolay Borisov
2019-02-08  7:39         ` [PATCH v2 " Anand Jain
2019-02-11 18:41           ` David Sterba
2019-02-08  7:02 ` [PATCH 2/5] btrfs: kill __btrfs_set_prop() Anand Jain
2019-02-08  7:02 ` Anand Jain [this message]
2019-02-08  7:10   ` [PATCH 3/5] btrfs: reorg functions to drop forward declaration Nikolay Borisov
2019-02-11 18:43     ` David Sterba
2019-02-08  7:02 ` [PATCH 4/5] btrfs: drop redundant forward declaration in props.c Anand Jain
2019-02-08  7:09   ` Nikolay Borisov
2019-02-08  7:02 ` [PATCH 5/5] btrfs: trivial, fix c coding style Anand Jain
2019-02-08  7:09   ` Nikolay Borisov
2019-02-08  7:15 ` [PATCH 0/5] Misc props.c cleanups Nikolay Borisov
2019-02-08  7:31   ` Anand Jain

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1549609355-11053-4-git-send-email-anand.jain@oracle.com \
    --to=anand.jain@oracle.com \
    --cc=linux-btrfs@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).