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1a0507d878
- Don't update inode timestamps for direct writes (performance regression fix).
- Skip no-op quota records instead of panicing.
- Fix a RCU race in gfs2_permission().
- Various other smaller fixes and cleanups all over the place.
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Merge tag 'gfs2-v6.6-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Don't update inode timestamps for direct writes (performance
regression fix)
- Skip no-op quota records instead of panicing
- Fix a RCU race in gfs2_permission()
- Various other smaller fixes and cleanups all over the place
* tag 'gfs2-v6.6-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (24 commits)
gfs2: don't withdraw if init_threads() got interrupted
gfs2: remove dead code in add_to_queue
gfs2: Fix slab-use-after-free in gfs2_qd_dealloc
gfs2: Silence "suspicious RCU usage in gfs2_permission" warning
gfs2: fs: derive f_fsid from s_uuid
gfs2: No longer use 'extern' in function declarations
gfs2: Rename gfs2_lookup_{ simple => meta }
gfs2: Convert gfs2_internal_read to folios
gfs2: Convert stuffed_readpage to folios
gfs2: Minor gfs2_write_jdata_batch PAGE_SIZE cleanup
gfs2: Get rid of gfs2_alloc_blocks generation parameter
gfs2: Add metapath_dibh helper
gfs2: Clean up quota.c:print_message
gfs2: Clean up gfs2_alloc_parms initializers
gfs2: Two quota=account mode fixes
gfs2: Stop using GFS2_BASIC_BLOCK and GFS2_BASIC_BLOCK_SHIFT
gfs2: setattr_chown: Add missing initialization
gfs2: fix an oops in gfs2_permission
gfs2: ignore negated quota changes
gfs2: Don't update inode timestamps for direct writes
...
69 lines
2 KiB
C
69 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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*/
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#ifndef __QUOTA_DOT_H__
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#define __QUOTA_DOT_H__
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#include <linux/list_lru.h>
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struct gfs2_inode;
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struct gfs2_sbd;
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#define NO_UID_QUOTA_CHANGE INVALID_UID
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#define NO_GID_QUOTA_CHANGE INVALID_GID
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int gfs2_qa_get(struct gfs2_inode *ip);
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void gfs2_qa_put(struct gfs2_inode *ip);
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int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
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void gfs2_quota_unhold(struct gfs2_inode *ip);
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int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
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void gfs2_quota_unlock(struct gfs2_inode *ip);
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int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid,
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struct gfs2_alloc_parms *ap);
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void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
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kuid_t uid, kgid_t gid);
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int gfs2_quota_sync(struct super_block *sb, int type);
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int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);
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int gfs2_quota_init(struct gfs2_sbd *sdp);
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void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
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int gfs2_quotad(void *data);
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void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
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static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
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struct gfs2_alloc_parms *ap)
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{
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struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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int ret;
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ap->allowed = UINT_MAX; /* Assume we are permitted a whole lot */
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if (capable(CAP_SYS_RESOURCE) ||
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sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
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return 0;
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ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
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if (ret)
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return ret;
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if (sdp->sd_args.ar_quota == GFS2_QUOTA_ACCOUNT)
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return 0;
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ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid, ap);
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if (ret)
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gfs2_quota_unlock(ip);
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return ret;
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}
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extern const struct quotactl_ops gfs2_quotactl_ops;
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int __init gfs2_qd_shrinker_init(void);
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void gfs2_qd_shrinker_exit(void);
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extern struct list_lru gfs2_qd_lru;
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void __init gfs2_quota_hash_init(void);
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#endif /* __QUOTA_DOT_H__ */
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