From: Mark Fasheh Date: Fri, 8 Sep 2006 18:39:27 +0000 (-0700) Subject: ocfs2: Update dlmfs for new dlmlock() API X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ea5b3a187e2724fa9d08b2fbd3898c149ed95c6b;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git ocfs2: Update dlmfs for new dlmlock() API We just need to add a namelen field to the user_lock_res structure, and update a few debug prints. Instead of updating all debug prints, I took the opportunity to remove a few that are likely unnecessary these days. Signed-off-by: Mark Fasheh --- diff --git a/fs/ocfs2/dlm/userdlm.c b/fs/ocfs2/dlm/userdlm.c index e641b084b343..eead48bbfac6 100644 --- a/fs/ocfs2/dlm/userdlm.c +++ b/fs/ocfs2/dlm/userdlm.c @@ -102,10 +102,10 @@ static inline void user_recover_from_dlm_error(struct user_lock_res *lockres) spin_unlock(&lockres->l_lock); } -#define user_log_dlm_error(_func, _stat, _lockres) do { \ - mlog(ML_ERROR, "Dlm error \"%s\" while calling %s on " \ - "resource %s: %s\n", dlm_errname(_stat), _func, \ - _lockres->l_name, dlm_errmsg(_stat)); \ +#define user_log_dlm_error(_func, _stat, _lockres) do { \ + mlog(ML_ERROR, "Dlm error \"%s\" while calling %s on " \ + "resource %.*s: %s\n", dlm_errname(_stat), _func, \ + _lockres->l_namelen, _lockres->l_name, dlm_errmsg(_stat)); \ } while (0) /* WARNING: This function lives in a world where the only three lock @@ -127,21 +127,22 @@ static void user_ast(void *opaque) struct user_lock_res *lockres = opaque; struct dlm_lockstatus *lksb; - mlog(0, "AST fired for lockres %s\n", lockres->l_name); + mlog(0, "AST fired for lockres %.*s\n", lockres->l_namelen, + lockres->l_name); spin_lock(&lockres->l_lock); lksb = &(lockres->l_lksb); if (lksb->status != DLM_NORMAL) { - mlog(ML_ERROR, "lksb status value of %u on lockres %s\n", - lksb->status, lockres->l_name); + mlog(ML_ERROR, "lksb status value of %u on lockres %.*s\n", + lksb->status, lockres->l_namelen, lockres->l_name); spin_unlock(&lockres->l_lock); return; } mlog_bug_on_msg(lockres->l_requested == LKM_IVMODE, - "Lockres %s, requested ivmode. flags 0x%x\n", - lockres->l_name, lockres->l_flags); + "Lockres %.*s, requested ivmode. flags 0x%x\n", + lockres->l_namelen, lockres->l_name, lockres->l_flags); /* we're downconverting. */ if (lockres->l_requested < lockres->l_level) { @@ -213,8 +214,8 @@ static void user_bast(void *opaque, int level) { struct user_lock_res *lockres = opaque; - mlog(0, "Blocking AST fired for lockres %s. Blocking level %d\n", - lockres->l_name, level); + mlog(0, "Blocking AST fired for lockres %.*s. Blocking level %d\n", + lockres->l_namelen, lockres->l_name, level); spin_lock(&lockres->l_lock); lockres->l_flags |= USER_LOCK_BLOCKED; @@ -231,7 +232,8 @@ static void user_unlock_ast(void *opaque, enum dlm_status status) { struct user_lock_res *lockres = opaque; - mlog(0, "UNLOCK AST called on lock %s\n", lockres->l_name); + mlog(0, "UNLOCK AST called on lock %.*s\n", lockres->l_namelen, + lockres->l_name); if (status != DLM_NORMAL && status != DLM_CANCELGRANT) mlog(ML_ERROR, "Dlm returns status %d\n", status); @@ -244,8 +246,6 @@ static void user_unlock_ast(void *opaque, enum dlm_status status) && !(lockres->l_flags & USER_LOCK_IN_CANCEL)) { lockres->l_level = LKM_IVMODE; } else if (status == DLM_CANCELGRANT) { - mlog(0, "Lock %s, cancel fails, flags 0x%x\n", - lockres->l_name, lockres->l_flags); /* We tried to cancel a convert request, but it was * already granted. Don't clear the busy flag - the * ast should've done this already. */ @@ -255,8 +255,6 @@ static void user_unlock_ast(void *opaque, enum dlm_status status) } else { BUG_ON(!(lockres->l_flags & USER_LOCK_IN_CANCEL)); /* Cancel succeeded, we want to re-queue */ - mlog(0, "Lock %s, cancel succeeds, flags 0x%x\n", - lockres->l_name, lockres->l_flags); lockres->l_requested = LKM_IVMODE; /* cancel an * upconvert * request. */ @@ -287,13 +285,14 @@ static void user_dlm_unblock_lock(void *opaque) struct user_lock_res *lockres = (struct user_lock_res *) opaque; struct dlm_ctxt *dlm = dlm_ctxt_from_user_lockres(lockres); - mlog(0, "processing lockres %s\n", lockres->l_name); + mlog(0, "processing lockres %.*s\n", lockres->l_namelen, + lockres->l_name); spin_lock(&lockres->l_lock); mlog_bug_on_msg(!(lockres->l_flags & USER_LOCK_QUEUED), - "Lockres %s, flags 0x%x\n", - lockres->l_name, lockres->l_flags); + "Lockres %.*s, flags 0x%x\n", + lockres->l_namelen, lockres->l_name, lockres->l_flags); /* notice that we don't clear USER_LOCK_BLOCKED here. If it's * set, we want user_ast clear it. */ @@ -305,22 +304,16 @@ static void user_dlm_unblock_lock(void *opaque) * flag, and finally we might get another bast which re-queues * us before our ast for the downconvert is called. */ if (!(lockres->l_flags & USER_LOCK_BLOCKED)) { - mlog(0, "Lockres %s, flags 0x%x: queued but not blocking\n", - lockres->l_name, lockres->l_flags); spin_unlock(&lockres->l_lock); goto drop_ref; } if (lockres->l_flags & USER_LOCK_IN_TEARDOWN) { - mlog(0, "lock is in teardown so we do nothing\n"); spin_unlock(&lockres->l_lock); goto drop_ref; } if (lockres->l_flags & USER_LOCK_BUSY) { - mlog(0, "Cancel lock %s, flags 0x%x\n", - lockres->l_name, lockres->l_flags); - if (lockres->l_flags & USER_LOCK_IN_CANCEL) { spin_unlock(&lockres->l_lock); goto drop_ref; @@ -372,6 +365,7 @@ static void user_dlm_unblock_lock(void *opaque) &lockres->l_lksb, LKM_CONVERT|LKM_VALBLK, lockres->l_name, + lockres->l_namelen, user_ast, lockres, user_bast); @@ -420,16 +414,16 @@ int user_dlm_cluster_lock(struct user_lock_res *lockres, if (level != LKM_EXMODE && level != LKM_PRMODE) { - mlog(ML_ERROR, "lockres %s: invalid request!\n", - lockres->l_name); + mlog(ML_ERROR, "lockres %.*s: invalid request!\n", + lockres->l_namelen, lockres->l_name); status = -EINVAL; goto bail; } - mlog(0, "lockres %s: asking for %s lock, passed flags = 0x%x\n", - lockres->l_name, - (level == LKM_EXMODE) ? "LKM_EXMODE" : "LKM_PRMODE", - lkm_flags); + mlog(0, "lockres %.*s: asking for %s lock, passed flags = 0x%x\n", + lockres->l_namelen, lockres->l_name, + (level == LKM_EXMODE) ? "LKM_EXMODE" : "LKM_PRMODE", + lkm_flags); again: if (signal_pending(current)) { @@ -474,15 +468,13 @@ again: BUG_ON(level == LKM_IVMODE); BUG_ON(level == LKM_NLMODE); - mlog(0, "lock %s, get lock from %d to level = %d\n", - lockres->l_name, lockres->l_level, level); - /* call dlm_lock to upgrade lock now */ status = dlmlock(dlm, level, &lockres->l_lksb, local_flags, lockres->l_name, + lockres->l_namelen, user_ast, lockres, user_bast); @@ -498,9 +490,6 @@ again: goto bail; } - mlog(0, "lock %s, successfull return from dlmlock\n", - lockres->l_name); - user_wait_on_busy_lock(lockres); goto again; } @@ -508,9 +497,6 @@ again: user_dlm_inc_holders(lockres, level); spin_unlock(&lockres->l_lock); - mlog(0, "lockres %s: Got %s lock!\n", lockres->l_name, - (level == LKM_EXMODE) ? "LKM_EXMODE" : "LKM_PRMODE"); - status = 0; bail: return status; @@ -538,13 +524,11 @@ void user_dlm_cluster_unlock(struct user_lock_res *lockres, { if (level != LKM_EXMODE && level != LKM_PRMODE) { - mlog(ML_ERROR, "lockres %s: invalid request!\n", lockres->l_name); + mlog(ML_ERROR, "lockres %.*s: invalid request!\n", + lockres->l_namelen, lockres->l_name); return; } - mlog(0, "lockres %s: dropping %s lock\n", lockres->l_name, - (level == LKM_EXMODE) ? "LKM_EXMODE" : "LKM_PRMODE"); - spin_lock(&lockres->l_lock); user_dlm_dec_holders(lockres, level); __user_dlm_cond_queue_lockres(lockres); @@ -602,6 +586,7 @@ void user_dlm_lock_res_init(struct user_lock_res *lockres, memcpy(lockres->l_name, dentry->d_name.name, dentry->d_name.len); + lockres->l_namelen = dentry->d_name.len; } int user_dlm_destroy_lock(struct user_lock_res *lockres) @@ -609,11 +594,10 @@ int user_dlm_destroy_lock(struct user_lock_res *lockres) int status = -EBUSY; struct dlm_ctxt *dlm = dlm_ctxt_from_user_lockres(lockres); - mlog(0, "asked to destroy %s\n", lockres->l_name); + mlog(0, "asked to destroy %.*s\n", lockres->l_namelen, lockres->l_name); spin_lock(&lockres->l_lock); if (lockres->l_flags & USER_LOCK_IN_TEARDOWN) { - mlog(0, "Lock is already torn down\n"); spin_unlock(&lockres->l_lock); return 0; } @@ -623,8 +607,6 @@ int user_dlm_destroy_lock(struct user_lock_res *lockres) while (lockres->l_flags & USER_LOCK_BUSY) { spin_unlock(&lockres->l_lock); - mlog(0, "lock %s is busy\n", lockres->l_name); - user_wait_on_busy_lock(lockres); spin_lock(&lockres->l_lock); @@ -632,14 +614,12 @@ int user_dlm_destroy_lock(struct user_lock_res *lockres) if (lockres->l_ro_holders || lockres->l_ex_holders) { spin_unlock(&lockres->l_lock); - mlog(0, "lock %s has holders\n", lockres->l_name); goto bail; } status = 0; if (!(lockres->l_flags & USER_LOCK_ATTACHED)) { spin_unlock(&lockres->l_lock); - mlog(0, "lock %s is not attached\n", lockres->l_name); goto bail; } @@ -647,7 +627,6 @@ int user_dlm_destroy_lock(struct user_lock_res *lockres) lockres->l_flags |= USER_LOCK_BUSY; spin_unlock(&lockres->l_lock); - mlog(0, "unlocking lockres %s\n", lockres->l_name); status = dlmunlock(dlm, &lockres->l_lksb, LKM_VALBLK, diff --git a/fs/ocfs2/dlm/userdlm.h b/fs/ocfs2/dlm/userdlm.h index 04178bc40b76..c400e93bbf79 100644 --- a/fs/ocfs2/dlm/userdlm.h +++ b/fs/ocfs2/dlm/userdlm.h @@ -53,6 +53,7 @@ struct user_lock_res { #define USER_DLM_LOCK_ID_MAX_LEN 32 char l_name[USER_DLM_LOCK_ID_MAX_LEN]; + int l_namelen; int l_level; unsigned int l_ro_holders; unsigned int l_ex_holders;