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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-24 01:04:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-24 01:04:04 +0300
commitf6e1e1d1e149802ed4062fa514c2d184d30aacdf (patch)
tree642b94478d59012f4323d144260002c858882586 /fs/gfs2/xattr.c
parent7d6beb71da3cc033649d641e1e608713b8220290 (diff)
parent17d77684088510df84ff8285982d0eed52cd5890 (diff)
downloadlinux-f6e1e1d1e149802ed4062fa514c2d184d30aacdf.tar.xz
Merge tag 'gfs2-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher: - Log space and revoke accounting rework to fix some failed asserts. - Local resource group glock sharing for better local performance. - Add support for version 1802 filesystems: trusted xattr support and '-o rgrplvb' mounts by default. - Actually synchronize on the inode glock's FREEING bit during withdraw ("gfs2: fix glock confusion in function signal_our_withdraw"). - Fix parallel recovery of multiple journals ("gfs2: keep bios separate for each journal"). - Various other bug fixes. * tag 'gfs2-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (49 commits) gfs2: Don't get stuck with I/O plugged in gfs2_ail1_flush gfs2: Per-revoke accounting in transactions gfs2: Rework the log space allocation logic gfs2: Minor calc_reserved cleanup gfs2: Use resource group glock sharing gfs2: Allow node-wide exclusive glock sharing gfs2: Add local resource group locking gfs2: Add per-reservation reserved block accounting gfs2: Rename rs_{free -> requested} and rd_{reserved -> requested} gfs2: Check for active reservation in gfs2_release gfs2: Don't search for unreserved space twice gfs2: Only pass reservation down to gfs2_rbm_find gfs2: Also reflect single-block allocations in rgd->rd_extfail_pt gfs2: Recursive gfs2_quota_hold in gfs2_iomap_end gfs2: Add trusted xattr support gfs2: Enable rgrplvb for sb_fs_format 1802 gfs2: Don't skip dlm unlock if glock has an lvb gfs2: Lock imbalance on error path in gfs2_recover_one gfs2: Move function gfs2_ail_empty_tr gfs2: Get rid of current_tail() ...
Diffstat (limited to 'fs/gfs2/xattr.c')
-rw-r--r--fs/gfs2/xattr.c54
1 files changed, 48 insertions, 6 deletions
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
index 13969a813410..124b3d5a7266 100644
--- a/fs/gfs2/xattr.c
+++ b/fs/gfs2/xattr.c
@@ -70,6 +70,20 @@ static int ea_check_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize)
return 0;
}
+static bool gfs2_eatype_valid(struct gfs2_sbd *sdp, u8 type)
+{
+ switch(sdp->sd_sb.sb_fs_format) {
+ case GFS2_FS_FORMAT_MAX:
+ return true;
+
+ case GFS2_FS_FORMAT_MIN:
+ return type <= GFS2_EATYPE_SECURITY;
+
+ default:
+ return false;
+ }
+}
+
typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh,
struct gfs2_ea_header *ea,
struct gfs2_ea_header *prev, void *private);
@@ -77,6 +91,7 @@ typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh,
static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
ea_call_t ea_call, void *data)
{
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_ea_header *ea, *prev = NULL;
int error = 0;
@@ -89,9 +104,8 @@ static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <=
bh->b_data + bh->b_size))
goto fail;
- if (!GFS2_EATYPE_VALID(ea->ea_type))
+ if (!gfs2_eatype_valid(sdp, ea->ea_type))
goto fail;
-
error = ea_call(ip, bh, ea, prev, data);
if (error)
return error;
@@ -259,7 +273,8 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
return -EIO;
}
- error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &rg_gh);
+ error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
+ LM_FLAG_NODE_SCOPE, &rg_gh);
if (error)
return error;
@@ -344,6 +359,7 @@ static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
void *private)
{
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct ea_list *ei = private;
struct gfs2_ea_request *er = ei->ei_er;
unsigned int ea_size;
@@ -353,6 +369,8 @@ static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
if (ea->ea_type == GFS2_EATYPE_UNUSED)
return 0;
+ BUG_ON(ea->ea_type > GFS2_EATYPE_SECURITY &&
+ sdp->sd_sb.sb_fs_format == GFS2_FS_FORMAT_MIN);
switch (ea->ea_type) {
case GFS2_EATYPE_USR:
prefix = "user.";
@@ -366,8 +384,12 @@ static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
prefix = "security.";
l = 9;
break;
+ case GFS2_EATYPE_TRUSTED:
+ prefix = "trusted.";
+ l = 8;
+ break;
default:
- BUG();
+ return 0;
}
ea_size = l + ea->ea_name_len + 1;
@@ -1386,7 +1408,8 @@ static int ea_dealloc_block(struct gfs2_inode *ip)
return -EIO;
}
- error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &gh);
+ error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
+ LM_FLAG_NODE_SCOPE, &gh);
if (error)
return error;
@@ -1464,7 +1487,25 @@ static const struct xattr_handler gfs2_xattr_security_handler = {
.set = gfs2_xattr_set,
};
-const struct xattr_handler *gfs2_xattr_handlers[] = {
+static bool
+gfs2_xattr_trusted_list(struct dentry *dentry)
+{
+ return capable(CAP_SYS_ADMIN);
+}
+
+static const struct xattr_handler gfs2_xattr_trusted_handler = {
+ .prefix = XATTR_TRUSTED_PREFIX,
+ .flags = GFS2_EATYPE_TRUSTED,
+ .list = gfs2_xattr_trusted_list,
+ .get = gfs2_xattr_get,
+ .set = gfs2_xattr_set,
+};
+
+const struct xattr_handler *gfs2_xattr_handlers_max[] = {
+ /* GFS2_FS_FORMAT_MAX */
+ &gfs2_xattr_trusted_handler,
+
+ /* GFS2_FS_FORMAT_MIN */
&gfs2_xattr_user_handler,
&gfs2_xattr_security_handler,
&posix_acl_access_xattr_handler,
@@ -1472,3 +1513,4 @@ const struct xattr_handler *gfs2_xattr_handlers[] = {
NULL,
};
+const struct xattr_handler **gfs2_xattr_handlers_min = gfs2_xattr_handlers_max + 1;