From: Steven Whitehouse <swhiteho@redhat.com>
To: linux-kernel@vger.kernel.org, cluster-devel@redhat.com
Cc: Steven Whitehouse <swhiteho@redhat.com>
Subject: [PATCH 05/16] GFS2: Use proper allocation context for new inodes
Date: Fri, 30 Nov 2012 09:52:10 +0000 [thread overview]
Message-ID: <1354269141-3311-6-git-send-email-swhiteho@redhat.com> (raw)
In-Reply-To: <1354269141-3311-1-git-send-email-swhiteho@redhat.com>
Rather than using the parent directory's allocation context, this
patch allocated the new inode earlier in the process and then uses
it to contain all the information required. As a result, we can now
use the new inode's own allocation context to allocate it rather
than having to use the parent directory's context. This give us a
lot more flexibility in where the inode is placed on disk.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 381893c..749b05a 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -364,34 +364,34 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
return 0;
}
-static void munge_mode_uid_gid(struct gfs2_inode *dip, umode_t *mode,
- unsigned int *uid, unsigned int *gid)
+static void munge_mode_uid_gid(const struct gfs2_inode *dip,
+ struct inode *inode)
{
if (GFS2_SB(&dip->i_inode)->sd_args.ar_suiddir &&
(dip->i_inode.i_mode & S_ISUID) && dip->i_inode.i_uid) {
- if (S_ISDIR(*mode))
- *mode |= S_ISUID;
+ if (S_ISDIR(inode->i_mode))
+ inode->i_mode |= S_ISUID;
else if (dip->i_inode.i_uid != current_fsuid())
- *mode &= ~07111;
- *uid = dip->i_inode.i_uid;
+ inode->i_mode &= ~07111;
+ inode->i_uid = dip->i_inode.i_uid;
} else
- *uid = current_fsuid();
+ inode->i_uid = current_fsuid();
if (dip->i_inode.i_mode & S_ISGID) {
- if (S_ISDIR(*mode))
- *mode |= S_ISGID;
- *gid = dip->i_inode.i_gid;
+ if (S_ISDIR(inode->i_mode))
+ inode->i_mode |= S_ISGID;
+ inode->i_gid = dip->i_inode.i_gid;
} else
- *gid = current_fsgid();
+ inode->i_gid = current_fsgid();
}
-static int alloc_dinode(struct gfs2_inode *dip, u64 *no_addr, u64 *generation)
+static int alloc_dinode(struct gfs2_inode *ip)
{
- struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
int error;
int dblocks = 1;
- error = gfs2_inplace_reserve(dip, RES_DINODE);
+ error = gfs2_inplace_reserve(ip, RES_DINODE);
if (error)
goto out;
@@ -399,12 +399,15 @@ static int alloc_dinode(struct gfs2_inode *dip, u64 *no_addr, u64 *generation)
if (error)
goto out_ipreserv;
- error = gfs2_alloc_blocks(dip, no_addr, &dblocks, 1, generation);
+ error = gfs2_alloc_blocks(ip, &ip->i_no_addr, &dblocks, 1, &ip->i_generation);
+ ip->i_no_formal_ino = ip->i_generation;
+ ip->i_inode.i_ino = ip->i_no_addr;
+ ip->i_goal = ip->i_no_addr;
gfs2_trans_end(sdp);
out_ipreserv:
- gfs2_inplace_release(dip);
+ gfs2_inplace_release(ip);
out:
return error;
}
@@ -429,52 +432,42 @@ static void gfs2_init_dir(struct buffer_head *dibh,
/**
* init_dinode - Fill in a new dinode structure
* @dip: The directory this inode is being created in
- * @gl: The glock covering the new inode
- * @inum: The inode number
- * @mode: The file permissions
- * @uid: The uid of the new inode
- * @gid: The gid of the new inode
- * @generation: The generation number of the new inode
- * @dev: The device number (if a device node)
+ * @ip: The inode
* @symname: The symlink destination (if a symlink)
- * @size: The inode size (ignored for directories)
* @bhp: The buffer head (returned to caller)
*
*/
-static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
- const struct gfs2_inum_host *inum, umode_t mode,
- unsigned int uid, unsigned int gid,
- const u64 *generation, dev_t dev, const char *symname,
- unsigned size, struct buffer_head **bhp)
+static void init_dinode(struct gfs2_inode *dip, struct gfs2_inode *ip,
+ const char *symname, struct buffer_head **bhp)
{
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
struct gfs2_dinode *di;
struct buffer_head *dibh;
struct timespec tv = CURRENT_TIME;
- dibh = gfs2_meta_new(gl, inum->no_addr);
- gfs2_trans_add_bh(gl, dibh, 1);
+ dibh = gfs2_meta_new(ip->i_gl, ip->i_no_addr);
+ gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_metatype_set(dibh, GFS2_METATYPE_DI, GFS2_FORMAT_DI);
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
di = (struct gfs2_dinode *)dibh->b_data;
- di->di_num.no_formal_ino = cpu_to_be64(inum->no_formal_ino);
- di->di_num.no_addr = cpu_to_be64(inum->no_addr);
- di->di_mode = cpu_to_be32(mode);
- di->di_uid = cpu_to_be32(uid);
- di->di_gid = cpu_to_be32(gid);
+ di->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
+ di->di_num.no_addr = cpu_to_be64(ip->i_no_addr);
+ di->di_mode = cpu_to_be32(ip->i_inode.i_mode);
+ di->di_uid = cpu_to_be32(ip->i_inode.i_uid);
+ di->di_gid = cpu_to_be32(ip->i_inode.i_gid);
di->di_nlink = 0;
- di->di_size = cpu_to_be64(size);
+ di->di_size = cpu_to_be64(ip->i_inode.i_size);
di->di_blocks = cpu_to_be64(1);
di->di_atime = di->di_mtime = di->di_ctime = cpu_to_be64(tv.tv_sec);
- di->di_major = cpu_to_be32(MAJOR(dev));
- di->di_minor = cpu_to_be32(MINOR(dev));
- di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr);
- di->di_generation = cpu_to_be64(*generation);
+ di->di_major = cpu_to_be32(MAJOR(ip->i_inode.i_rdev));
+ di->di_minor = cpu_to_be32(MINOR(ip->i_inode.i_rdev));
+ di->di_goal_meta = di->di_goal_data = cpu_to_be64(ip->i_no_addr);
+ di->di_generation = cpu_to_be64(ip->i_generation);
di->di_flags = 0;
di->__pad1 = 0;
- di->di_payload_format = cpu_to_be32(S_ISDIR(mode) ? GFS2_FORMAT_DE : 0);
+ di->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) ? GFS2_FORMAT_DE : 0);
di->di_height = 0;
di->__pad2 = 0;
di->__pad3 = 0;
@@ -487,7 +480,7 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
di->di_ctime_nsec = cpu_to_be32(tv.tv_nsec);
memset(&di->di_reserved, 0, sizeof(di->di_reserved));
- switch(mode & S_IFMT) {
+ switch(ip->i_inode.i_mode & S_IFMT) {
case S_IFREG:
if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
gfs2_tune_get(sdp, gt_new_files_jdata))
@@ -502,7 +495,7 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
gfs2_init_dir(dibh, dip);
break;
case S_IFLNK:
- memcpy(dibh->b_data + sizeof(struct gfs2_dinode), symname, size);
+ memcpy(dibh->b_data + sizeof(struct gfs2_dinode), symname, ip->i_inode.i_size);
break;
}
@@ -511,25 +504,22 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
*bhp = dibh;
}
-static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
- umode_t mode, const struct gfs2_inum_host *inum,
- const u64 *generation, dev_t dev, const char *symname,
- unsigned int size, struct buffer_head **bhp)
+static int make_dinode(struct gfs2_inode *dip, struct gfs2_inode *ip,
+ const char *symname, struct buffer_head **bhp)
{
+ struct inode *inode = &ip->i_inode;
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
- unsigned int uid, gid;
int error;
- munge_mode_uid_gid(dip, &mode, &uid, &gid);
error = gfs2_rindex_update(sdp);
if (error)
return error;
- error = gfs2_quota_lock(dip, uid, gid);
+ error = gfs2_quota_lock(dip, inode->i_uid, inode->i_gid);
if (error)
return error;
- error = gfs2_quota_check(dip, uid, gid);
+ error = gfs2_quota_check(dip, inode->i_uid, inode->i_gid);
if (error)
goto out_quota;
@@ -537,8 +527,8 @@ static int make_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
if (error)
goto out_quota;
- init_dinode(dip, gl, inum, mode, uid, gid, generation, dev, symname, size, bhp);
- gfs2_quota_change(dip, +1, uid, gid);
+ init_dinode(dip, ip, symname, bhp);
+ gfs2_quota_change(dip, +1, inode->i_uid, inode->i_gid);
gfs2_trans_end(sdp);
out_quota:
@@ -657,19 +647,13 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
struct inode *inode = NULL;
struct gfs2_inode *dip = GFS2_I(dir), *ip;
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
- struct gfs2_inum_host inum = { .no_addr = 0, .no_formal_ino = 0 };
+ struct gfs2_glock *io_gl;
int error;
- u64 generation;
struct buffer_head *bh = NULL;
if (!name->len || name->len > GFS2_FNAMESIZE)
return -ENAMETOOLONG;
- /* We need a reservation to allocate the new dinode block. The
- directory ip temporarily points to the reservation, but this is
- being done to get a set of contiguous blocks for the new dinode.
- Since this is a create, we don't have a sizehint yet, so it will
- have to use the minimum reservation size. */
error = gfs2_rs_alloc(dip);
if (error)
return error;
@@ -688,45 +672,63 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
if (error)
goto fail_gunlock;
- error = alloc_dinode(dip, &inum.no_addr, &generation);
+ inode = new_inode(sdp->sd_vfs);
+ ip = GFS2_I(inode);
+ error = gfs2_rs_alloc(ip);
if (error)
- goto fail_gunlock;
- inum.no_formal_ino = generation;
+ goto fail_free_inode;
+
+ set_bit(GIF_INVALID, &ip->i_flags);
+ inode->i_mode = mode;
+ inode->i_rdev = dev;
+ inode->i_size = size;
+ munge_mode_uid_gid(dip, inode);
+ ip->i_goal = dip->i_goal;
- error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops,
- LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
+ error = alloc_dinode(ip);
if (error)
- goto fail_gunlock;
+ goto fail_free_inode;
- error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation, dev, symname, size, &bh);
+ error = gfs2_glock_get(sdp, ip->i_no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl);
if (error)
- goto fail_gunlock2;
+ goto fail_free_inode;
- inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr,
- inum.no_formal_ino, 0);
- if (IS_ERR(inode))
+ error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
+ if (error)
+ goto fail_free_inode;
+
+ error = make_dinode(dip, ip, symname, &bh);
+ if (error)
goto fail_gunlock2;
- ip = GFS2_I(inode);
- error = gfs2_inode_refresh(ip);
+ error = gfs2_glock_get(sdp, ip->i_no_addr, &gfs2_iopen_glops, CREATE, &io_gl);
if (error)
goto fail_gunlock2;
- error = gfs2_rs_alloc(ip);
+ error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh);
if (error)
goto fail_gunlock2;
+ ip->i_iopen_gh.gh_gl->gl_object = ip;
+ gfs2_glock_put(io_gl);
+ gfs2_set_iop(inode);
+ insert_inode_hash(inode);
+
+ error = gfs2_inode_refresh(ip);
+ if (error)
+ goto fail_gunlock3;
+
error = gfs2_acl_create(dip, inode);
if (error)
- goto fail_gunlock2;
+ goto fail_gunlock3;
error = gfs2_security_init(dip, ip, name);
if (error)
- goto fail_gunlock2;
+ goto fail_gunlock3;
error = link_dinode(dip, name, ip);
if (error)
- goto fail_gunlock2;
+ goto fail_gunlock3;
if (bh)
brelse(bh);
@@ -739,8 +741,20 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
d_instantiate(dentry, inode);
return 0;
+fail_gunlock3:
+ gfs2_glock_dq_uninit(ghs + 1);
+ if (ip->i_gl)
+ gfs2_glock_put(ip->i_gl);
+ goto fail_gunlock;
+
fail_gunlock2:
gfs2_glock_dq_uninit(ghs + 1);
+fail_free_inode:
+ if (ip->i_gl)
+ gfs2_glock_put(ip->i_gl);
+ gfs2_rs_delete(ip);
+ free_inode_nonrcu(inode);
+ inode = NULL;
fail_gunlock:
gfs2_glock_dq_uninit(ghs);
if (inode && !IS_ERR(inode)) {
@@ -748,7 +762,6 @@ fail_gunlock:
iput(inode);
}
fail:
- gfs2_rs_delete(dip);
if (bh)
brelse(bh);
return error;
--
1.7.4
next prev parent reply other threads:[~2012-11-30 10:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-30 9:52 GFS2: Pre-pull patch posting (merge window) Steven Whitehouse
2012-11-30 9:52 ` [PATCH 01/16] GFS2: Review bug traps in glops.c Steven Whitehouse
2012-11-30 9:52 ` [PATCH 02/16] GFS2: Speed up gfs2_rbm_from_block Steven Whitehouse
2012-11-30 9:52 ` [PATCH 03/16] GFS2: Rename glops go_xmote_th to go_sync Steven Whitehouse
2012-11-30 9:52 ` [PATCH 04/16] GFS2: Add test for resource group congestion status Steven Whitehouse
2012-11-30 9:52 ` Steven Whitehouse [this message]
2012-11-30 9:52 ` [PATCH 06/16] GFS2: Add Orlov allocator Steven Whitehouse
2012-11-30 9:52 ` [PATCH 07/16] GFS2: Fix truncation of journaled data files Steven Whitehouse
2012-11-30 9:52 ` [PATCH 08/16] GFS2: Use dirty_inode in gfs2_dir_add Steven Whitehouse
2012-11-30 9:52 ` [PATCH 09/16] GFS2: Eliminate redundant buffer_head manipulation in gfs2_unlink_inode Steven Whitehouse
2012-11-30 9:52 ` [PATCH 10/16] GFS2: Fix one RG corner case Steven Whitehouse
2012-11-30 9:52 ` [PATCH 11/16] GFS2: skip dlm_unlock calls in unmount Steven Whitehouse
2012-11-30 9:52 ` [PATCH 12/16] GFS2: only use lvb on glocks that need it Steven Whitehouse
2012-11-30 9:52 ` [PATCH 13/16] GFS2: remove redundant lvb pointer Steven Whitehouse
2012-11-30 9:52 ` [PATCH 14/16] GFS2: don't reference inode's glock during block allocation trace Steven Whitehouse
2012-11-30 9:52 ` [PATCH 15/16] GFS2: add error check while allocating new inodes Steven Whitehouse
2012-11-30 9:52 ` [PATCH 16/16] GFS2: Set gl_object during inode create Steven Whitehouse
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